Month: October 2022

Ashok, Dongamanti et al. published their research in Medicinal Chemistry Research in 2016 |CAS: 36640-53-6

The Article related to pyranochromenone pyrazolyl preparation antibacterial antifungal mol docking, hydroxychromenyl pyrazolyl propenone preparation oxidative cyclization microwave irradiation, pyrazole aldehyde hydroxychromenyl ethanone claisen schmidt condensation microwave irradiation, pyrazolyl hydroxychromenyl propenone antibacterial antifungal mol docking and other aspects.COA of Formula: C20H14N2O

On March 31, 2016, Ashok, Dongamanti; Rangu, Kavitha; Hanumantha Rao, Velagapuri; Gundu, Srinivas; Srilata, Ballu; Vijjulatha, Manga published an article.COA of Formula: C20H14N2O The title of the article was Microwave-assisted synthesis, molecular docking and antimicrobial activity of novel 2-(3-aryl-1-phenyl-1H-pyrazol-4-yl)-8H-pyrano[2,3-f]chromen-4-ones. And the article contained the following:

A series of pyrano[2,3-f]chromenones I [Ar = C6H5, 4-BrC6H4, 3,4-(MeO)2C6H3, 2-naphthyl, etc.] was synthesized via microwave-assisted cyclization of chalcones II in the presence of iodine in DMSO. Precursor chalcones II were prepared by Claisen-Schmidt condensation of 1-(5-hydroxy-2H-chromen-6-yl)ethanone and substituted pyrazole aldehydes using KOH under microwave irradiation This approach for the preparation of pyrano[2,3-f]chromenones I offers the advantages of short reaction time (3-5 min), mild reaction conditions and high yields of products. The newly synthesized compounds I and II were tested in vitro for their antibacterial and antifungal activities. Among the tested compounds, compounds I [Ar = 4-ClC6H4, 4-HOC6H4, 3,4-(MeO)2C6H3] and II [Ar = 3-EtOC6H4] were found to be potent against tested bacterial strains whereas compounds I [Ar = 4-ClC6H4, 3,4-(MeO)2C6H3] and II [Ar = 4-EtOC6H4] were found to be potent against tested fungal strains. Furthermore, the synthesized compounds were subjected to mol. docking studies for the inhibition of enzyme DNA gyrase and compounds I [Ar = 4-HOC6H4, 4-EtOC6H4] showed promising dock score values. The in silico mol. docking results of compounds I and II were in accordance with the in vitro antimicrobial studies and they may be considered as good inhibitor of DNA gyrase. The experimental process involved the reaction of 3-(Naphthalen-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde(cas: 36640-53-6).COA of Formula: C20H14N2O

The Article related to pyranochromenone pyrazolyl preparation antibacterial antifungal mol docking, hydroxychromenyl pyrazolyl propenone preparation oxidative cyclization microwave irradiation, pyrazole aldehyde hydroxychromenyl ethanone claisen schmidt condensation microwave irradiation, pyrazolyl hydroxychromenyl propenone antibacterial antifungal mol docking and other aspects.COA of Formula: C20H14N2O

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Vankayalapati, Hariprasad et al. published their patent in 2012 |CAS: 1186608-73-0

The Article related to pyrazinylpyrazolopyridine pyrazolopyridine preparation protein kinase inhibitor antitumor antiinflammatory antiparkinsonian, parkinson’s alzheimer’s disease down’s syndrome treatment pyrazinylpyrazolopyridine pyrazolopyridine preparation, huntington’s disease neurodegenerative cns disorder treatment pyrazinylpyrazolopyridine pyrazolopyridine preparation and other aspects.COA of Formula: C7H8N4

On October 4, 2012, Vankayalapati, Hariprasad; Appalaneni, Rajendra P.; Reddy, Y. Venkata Krishna published a patent.COA of Formula: C7H8N4 The title of the patent was Preparation of substituted 5-(pyrazin-2-yl)-1H-pyrazolo[3,4-b]pyridine and pyrazolo[3,4-b]pyridine derivatives as protein kinase inhibitors. And the patent contained the following:

This invention relates to the title compounds I-III [X = N, CH; L1 = a bond, (un)substituted 6-membered aryl, heteroaryl, etc.; R1-R3 = H, halo, CN, etc.; Q = NH, O, S, etc.; L2 = IV (wherein X1 = N, CH; X2 = N, CH; X3 = N, CH; R10 = H, halo, CN, etc.)] which are inhibitors of constitutively activated Tyrosine Kinase-Like (TKL), CMGC protein kinases family members and can be useful in the treatment of Parkinson’s disease, Alzheimer’s disease, Down’s syndrome, Huntington’s disease, other neurodegenerative and central nervous system disorders, cancer, metabolic disorders and inflammatory diseases, and to methods for making them. Seventy title compounds were prepared and formulated. For example, a multi-step synthesis of V, starting from mucobromic acid, was described. Exemplified title compounds were tested in the LRRK2 kinase assay (data given). Also disclosed are pharmaceutical compositions including the title compounds and methods of inhibiting wild type and/or mutated protein kinase activities of these families and the treatment of disorders associated therewith using title compounds and pharmaceutical compositions including the title compounds The experimental process involved the reaction of 3-Methyl-1H-pyrazolo[3,4-b]pyridin-5-amine(cas: 1186608-73-0).COA of Formula: C7H8N4

The Article related to pyrazinylpyrazolopyridine pyrazolopyridine preparation protein kinase inhibitor antitumor antiinflammatory antiparkinsonian, parkinson’s alzheimer’s disease down’s syndrome treatment pyrazinylpyrazolopyridine pyrazolopyridine preparation, huntington’s disease neurodegenerative cns disorder treatment pyrazinylpyrazolopyridine pyrazolopyridine preparation and other aspects.COA of Formula: C7H8N4

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Tang, Guozhi et al. published their patent in 2020 |CAS: 153597-59-2

The Article related to indolyl fused pyrazole macrocyclic compound preparation mcl 1 inhibitor, macrocyclic fused pyrazole preparation mcl 1 inhibitor, cancer chronic autoimmune disorder treatment macrocyclic fused pyrazole preparation, inflammatory condition proliferative disorder macrocyclic fused pyrazole preparation, sepsis viral infection macrocyclic fused pyrazole preparation and other aspects.Formula: C9H12N2O3

On July 30, 2020, Tang, Guozhi; Li, Dongbo; Li, Liugen; Zha, Xianchan; Chen, Wenming; Wang, Shaomeng; Yang, Chao-Yie published a patent.Formula: C9H12N2O3 The title of the patent was Preparation of macrocyclic fused pyrazoles as Mcl-1 inhibitors. And the patent contained the following:

The title compounds represented by formula I [R = H or C1-6 alkyl; X = O, S, S(O), S(O)2, or (un)substituted NH; ring A = each (un)substituted 1,3-phenylene or 1,3-naphthalenylene; ring B = arylenyl and heteroarylenyl; ring C = each (un)substituted 1H-pyrazol-3,4-diyl or 1H-pyrazol-4,5-diyl; L1 = [C(R14a)(R14b)]s; L2 = [C(R14c)(R14d)]t; L3 = [C(R14c)(R14f)]v; R14a, R14b, R14d, R14f = each independently H or C1-4 alkyl; s = 2,3,4,5, or 6; t, v = each independently 1,2,3, or 4] or pharmaceutically acceptable salts or solvates thereof are prepared The compounds I are useful for treating a condition or disorder responsive to Mcl-1 inhibition such as cancer, a chronic autoimmune disorder, an inflammatory condition, a proliferative disorder, sepsis, or a viral infection. Thus, Et 7-[2-(bromomethyl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-3-yl]-6-chloro-3-[3-[[3-[(4-methoxybenzyl)thio]naphthalen-1-yl]oxy]propyl]-1-methyl-1H-indole-2-carboxylate underwent thioetherification with S-[[5-[[(tert-butyldimethylsilyl)oxy]methyl]-1-methyl-1H-pyrazol-3-yl]methyl] ethanethioate in the presence of K2CO3 in methanol/THF at room for 1 h to give 27% Et 7-[2-[[[[5-[[(tert-butyldimethylsilyl)oxy]methyl]-1-methyl-1H-pyrazol-3-yl]methyl]thio]methyl]-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-3-yl]-6-chloro-3-[3-[[3-[(4-methoxybenzyl)thio]naphthalen-1-yl]oxy]propyl]-1-methyl-1H-indole-2-carboxylate (II; Ra = 4-methoxybenzyl, Rb = tert-butyldimethylsilyloxy) which was treated with Bu4NF·3H2O in dry THF at room temperature for 2 h to give II (Ra = 4-methoxybenzyl, Rb = HO). Bromination of II (Ra = 4-methoxybenzyl, Rb = HO) with CBr4 and PPh3 in CH2Cl2 at room temperature for 3 h gave II (Ra = 4-methoxybenzyl, Rb = Br) as a brown oil which underwent debenzylation by treatment with triethylsilane and CF3CO2H in CH2Cl2 at room temperature overnight to give II (Ra = H, Rb = Br). Cyclization of II (Ra = H, Rb = Br) by treatment with K2CO3 in acetonitrile at room temperature for 3 h gave macrocyclic 7-(pyrrolo[1,2-b]pyrazol-3-yl)indole-2-carboxylic acid Et ester (III; Rc = Et) which was saponified with a mixture of 2 N aqueous NaOH solution, THF, and MeOH at room temperature for 5 h followed by acidification with 1 N aqueous HCl solution to give III (Rc = H) in 3% over 6 steps. III (Rc = H) showed IC50 of 15 nM against the competitive binding of a fluorescein labeled 21-residue Bid BH3 peptide (residues 79-99) [Swiss-Prot: P55957] to Mcl-1 protein. It showed IC50 of 437 and 123 nM against OPM2 and H929 cell, resp., in a cell viability assay. The experimental process involved the reaction of Ethyl 6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-2-carboxylate(cas: 153597-59-2).Formula: C9H12N2O3

The Article related to indolyl fused pyrazole macrocyclic compound preparation mcl 1 inhibitor, macrocyclic fused pyrazole preparation mcl 1 inhibitor, cancer chronic autoimmune disorder treatment macrocyclic fused pyrazole preparation, inflammatory condition proliferative disorder macrocyclic fused pyrazole preparation, sepsis viral infection macrocyclic fused pyrazole preparation and other aspects.Formula: C9H12N2O3

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Ameriks, Michael K. et al. published their patent in 2021 |CAS: 143803-93-4

The Article related to analgesics, antidepressants, antitumor agents, anxiety disorders (anxious depression), anxiolytics, asperger syndrome, bipolar disorder, depression (treatment-resistant), eye disease and other aspects.Electric Literature of 143803-93-4

On September 30, 2021, Ameriks, Michael K.; Laforteza, Brian Ngo; Ravula, Suchitra; Schiffer, Jamie M.; Stenne, Brice M. published a patent.Electric Literature of 143803-93-4 The title of the patent was Preparation of fused and bridged compounds as monoacylglycerol lipase modulators. And the patent contained the following:

This invention relates to the title compounds I [R1a = alkyl; R1b = H; or R1a and R1b taken together form (CH2)2-3; R2 = (un)substituted Ph, pyridyl, bicyclic heteroaryl; R3 = 1H-alkyl-pyrazolyl, 1H-haloalkyl-pyrazolyl, 1H-pyridyl-pyrazolyl, etc.; with the proviso], and pharmaceutically acceptable salts, isotopes, N-oxides, solvates, and stereoisomers thereof, to pharmaceutical compositions containing them, to methods of making them, and to methods of using them including methods for treating disease states, disorders, and conditions associated with MGL modulation, such as those associated with pain, psychiatric disorders, neurol. disorders (including, but not limited to major depressive disorder, treatment resistant depression, anxious depression, autism spectrum disorders, Asperger syndrome, bipolar disorder), cancers and eye conditions. E.g., a multi-step synthesis of (S)-II, starting from Et L-alaninate hydrochloride and Et 4-bromobutanoate, was described. Exemplified compounds I were tested for their in vitro activity of MGL (data given for representative compounds I). The experimental process involved the reaction of 4-Methylpyrazolo[1,5-a]pyridine-3-carboxylic acid(cas: 143803-93-4).Electric Literature of 143803-93-4

The Article related to analgesics, antidepressants, antitumor agents, anxiety disorders (anxious depression), anxiolytics, asperger syndrome, bipolar disorder, depression (treatment-resistant), eye disease and other aspects.Electric Literature of 143803-93-4

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Lv, Xiu-Liang team published research in Journal of the American Chemical Society in 2017 | 269410-08-4

269410-08-4, 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, also known as 4-Pyrazoleboronic acid pinacol ester , is a useful research compound. Its molecular formula is C9H15BN2O2 and its molecular weight is 194.04 g/mol. The purity is usually 95%.

4-Pyrazoleboronic acid pinacol ester is a useful reagent for Suzuki-Miyaura cross-couplings as well as Ruthenium-catalyzed asymmetric hydrogenation. 4-Pyrazoleboronic acid pinacol ester is also a useful reagent for preparing VEGF, Aurora, RHO (ROCK), Janus Kinase 2, c-MET, ALK, S-nitrsoflutathione reductase, CDC7, Acetyl-CoA carboxylase inhibitors.

4-Pyrazoleboronic acid pinacol ester is used in the preparation of Rho kinase (ROCK) inhibitors as wella s other biologically active compounds.

4-Pyrazoleboronic acid pinacol ester is an organic compound that is the product of a bifunctional coupling reaction between 4-pyrazolecarboxylic acid and pinacol. It has been shown to inhibit protein S6 kinase, which is involved in the regulation of cell growth and proliferation. This compound has also been shown to be effective against cancer cells, including those that are resistant to conventional chemotherapeutic drugs. 4-Pyrazoleboronic acid pinacol ester may also be used as a precursor for other compounds with pharmaceutical activity., Related Products of 269410-08-4

Pyrazole is an organic compound with the formula C3H3N2H. It is a heterocycle characterized by a 5-membered ring of three carbon atoms and two adjacent nitrogen atoms, which are in ortho-substitution. 269410-08-4, formula is C9H15BN2O2, Name is 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole. Pyrazoles are a class of compounds that have the ring C3N2 with adjacent nitrogen atoms.Notable drugs containing a pyrazole ring are celecoxib (celebrex) and the anabolic steroid stanozolol. Related Products of 269410-08-4.

Lv, Xiu-Liang;Wang, Kecheng;Wang, Bin;Su, Jie;Zou, Xiaodong;Xie, Yabo;Li, Jian-Rong;Zhou, Hong-Cai research published 《 A base-resistant metalloporphyrin metal-organic framework for C-H bond halogenation》, the research content is summarized as follows. Manganese metalloporphyrin, meso-(PzC6H4)4PorMnCl (Pz = 1H-pyrazol-4-yl) was prepared, both free porphine and its manganese complex were reacted with M(OAc)2 to give metal-organic frameworks, PCN-602(Ni) and PCN-602(Mn), resp. A base-resistant porphyrin metal-organic framework (MOF), namely PCN-602 has been constructed with 12-connected [Ni8(OH)4(H2O)2Pz12] (Pz = pyrazolate) cluster and a newly designed pyrazolate-based porphyrin ligand, 5,10,15,20-tetrakis(4-(pyrazolate-4-yl)phenyl)porphyrin under the guidance of the reticular synthesis strategy. Besides its robustness in hydroxide solution, PCN-602 also shows excellent stability in aqueous solutions of F–, CO32-, and PO43- ions. Interestingly, the Mn3+-porphyrinic PCN-602, as a recyclable MOF catalyst, presents high catalytic activity for the C-H bond halogenation reaction in a basic system, significantly outperforming its homogeneous counterpart. For the first time, a porphyrinic MOF was thus used as an efficient catalyst in a basic solution with coordinating anions, to the best of our knowledge.

269410-08-4, 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, also known as 4-Pyrazoleboronic acid pinacol ester , is a useful research compound. Its molecular formula is C9H15BN2O2 and its molecular weight is 194.04 g/mol. The purity is usually 95%.

4-Pyrazoleboronic acid pinacol ester is a useful reagent for Suzuki-Miyaura cross-couplings as well as Ruthenium-catalyzed asymmetric hydrogenation. 4-Pyrazoleboronic acid pinacol ester is also a useful reagent for preparing VEGF, Aurora, RHO (ROCK), Janus Kinase 2, c-MET, ALK, S-nitrsoflutathione reductase, CDC7, Acetyl-CoA carboxylase inhibitors.

4-Pyrazoleboronic acid pinacol ester is used in the preparation of Rho kinase (ROCK) inhibitors as wella s other biologically active compounds.

4-Pyrazoleboronic acid pinacol ester is an organic compound that is the product of a bifunctional coupling reaction between 4-pyrazolecarboxylic acid and pinacol. It has been shown to inhibit protein S6 kinase, which is involved in the regulation of cell growth and proliferation. This compound has also been shown to be effective against cancer cells, including those that are resistant to conventional chemotherapeutic drugs. 4-Pyrazoleboronic acid pinacol ester may also be used as a precursor for other compounds with pharmaceutical activity., Related Products of 269410-08-4

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Lu, Ke team published research in Shipin Kexue (Beijing, China) in 2014 | 37622-90-5

37622-90-5, Ethyl 4-pyrazolecarboxylate, also known as Ethyl pyrazole-4-carboxylate, is a useful research compound. Its molecular formula is C6H8N2O2 and its molecular weight is 140.14 g/mol. The purity is usually 95%.

Ethyl pyrazole-4-carboxylate is a low yield, transition metal salt that is used in the synthesis of pyrazoles. It can be synthesized by the reaction of sodium ethoxide with ethyl chloroformate and a Grignard reagent. Sodium ethoxide is added to a suspension of sodium chloride and dried ethyl chloroformate, followed by addition of magnesium turnings. The mixture is refluxed for one hour, cooled, and filtered to give crystals. Ethyl pyrazole-4-carboxylate is used in the preparation of ethyl esters from aliphatic alcohols by reacting with boron trichloride or phosphorus pentachloride. It participates in certain chemical reactions as a byproduct and can damage equipment during chemical reactions. The yield of this compound can be increased by using an excess amount of Grignard reagent or adding hexamethylenetetramine to the reaction mixture, Recommanded Product: Ethyl 4-pyrazolecarboxylate

Pyrazole is an organic compound with the formula C3H3N2H. It is a heterocycle characterized by a 5-membered ring of three carbon atoms and two adjacent nitrogen atoms, which are in ortho-substitution. 37622-90-5, formula is C6H8N2O2, Name is Ethyl 4-pyrazolecarboxylate. Pyrazoles are a class of compounds that have the ring C3N2 with adjacent nitrogen atoms.Notable drugs containing a pyrazole ring are celecoxib (celebrex) and the anabolic steroid stanozolol. Recommanded Product: Ethyl 4-pyrazolecarboxylate.

Lu, Ke;Xue, Chu-ran;Qiao, Hui;Liu, Shu-wen;Xu, Xiang-wen research published 《 Analysis of aroma composition of litchi ice wine by different extraction fibers》, the research content is summarized as follows. The aroma compounds of litchi ice wine were analyzed by head-space solid-phase micro-extraction (HSSPME) coupled to gas chromatog.-mass spectrometry (GC-MS). The efficiency of three different extraction fibers was evaluated by comparing the number, chem. group and cumulative area normalization value (CANV) of the extracted compounds The results indicated that the extraction efficiency of aroma compounds were very different in litchi ice wine because of different fibers. Totally 62, 56 and 52 aroma compounds in litchi ice wine were extracted through PA, CAR/PDMS and DNB/CAR/PDMS, resp. The major constituents were esters, alcs., acids, ketones, aldehydes, and a few terpenes. The most important aroma compounds were Et caprylate (38.96%), Et caprate (25.14%), Et caproate (9.31%), isoamyl alc. (7.89%), Me methacrylate (1.52%), Et laurate (1.49%), 3-furaldehyde (1.26%), decanoic acid (1.25%), benzyl alc. (1.21%), damascenone (1.21%), and phenethyl alc. (0.30%). The anal. of cumulative area normalization value indicated that 85 μm PA was more sensitive to extract acids but least sensitive to other compounds, 75 μm CAR/PDMS was more sensitive to esters and alcs., and 50/30 μm DNB/CAR/PDMS was more sensitive to ketones and aldehydes. Considering all factors above, 75 μm CAR/PDMS was the optimal fiber for the extraction of aroma compounds in litchi ice wine.

37622-90-5, Ethyl 4-pyrazolecarboxylate, also known as Ethyl pyrazole-4-carboxylate, is a useful research compound. Its molecular formula is C6H8N2O2 and its molecular weight is 140.14 g/mol. The purity is usually 95%.

Ethyl pyrazole-4-carboxylate is a low yield, transition metal salt that is used in the synthesis of pyrazoles. It can be synthesized by the reaction of sodium ethoxide with ethyl chloroformate and a Grignard reagent. Sodium ethoxide is added to a suspension of sodium chloride and dried ethyl chloroformate, followed by addition of magnesium turnings. The mixture is refluxed for one hour, cooled, and filtered to give crystals. Ethyl pyrazole-4-carboxylate is used in the preparation of ethyl esters from aliphatic alcohols by reacting with boron trichloride or phosphorus pentachloride. It participates in certain chemical reactions as a byproduct and can damage equipment during chemical reactions. The yield of this compound can be increased by using an excess amount of Grignard reagent or adding hexamethylenetetramine to the reaction mixture, Recommanded Product: Ethyl 4-pyrazolecarboxylate

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Lloyd, Matthew G. team published research in Journal of Medicinal Chemistry in 2021 | 761446-44-0

Category: pyrazoles-derivatives, 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is a useful research compound. Its molecular formula is C10H17BN2O2 and its molecular weight is 208.07 g/mol. The purity is usually 95%., 761446-44-0.

Pyrazole and its derivatives are considered a pharmacologically important active scaffold that possesses almost all types of pharmacological activities. 761446-44-0, formula is C10H17BN2O2, Name is 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole. Pyrazole is a weak base, with pKb 11.5 (pKa of the conjugated acid 2.49 at 25 °C).Pyrazole used as a ligand to prepare organometallic compounds. Category: pyrazoles-derivatives.

Lloyd, Matthew G.;Huckvale, Rosemary;Cheung, Kwai-Ming J.;Rodrigues, Matthew J.;Collie, Gavin W.;Pierrat, Olivier A.;Gatti Iou, Mahad;Carter, Michael;Davis, Owen A.;McAndrew, P. Craig;Gunnell, Emma;Le Bihan, Yann-Vai;Talbot, Rachel;Henley, Alan T.;Johnson, Louise D.;Hayes, Angela;Bright, Michael D.;Raynaud, Florence I.;Meniconi, Mirco;Burke, Rosemary;van Montfort, Rob L. M.;Rossanese, Olivia W.;Bellenie, Benjamin R.;Hoelder, Swen research published 《 Into Deep Water: Optimizing BCL6 Inhibitors by Growing into a Solvated Pocket》, the research content is summarized as follows. We describe the optimization of modestly active starting points to potent inhibitors of BCL6 by growing into a subpocket, which was occupied by a network of five stably bound water mols. Identifying potent inhibitors required not only forming new interactions in the subpocket but also perturbing the water network in a productive, potency-increasing fashion while controlling the physicochem. properties. We achieved this goal in a sequential manner by systematically probing the pocket and the water network, ultimately achieving a 100-fold improvement of activity. The most potent compounds displaced three of the five initial water mols. and formed hydrogen bonds with the remaining two. Compound 25 showed a promising profile for a lead compound with submicromolar inhibition of BCL6 in cells and satisfactory pharmacokinetic (PK) properties. Our work highlights the importance of finding productive ways to perturb existing water networks when growing into solvent-filled protein pockets.

Category: pyrazoles-derivatives, 1-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is a useful research compound. Its molecular formula is C10H17BN2O2 and its molecular weight is 208.07 g/mol. The purity is usually 95%., 761446-44-0.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Liu, Yong-zheng team published research in Journal of Molecular Liquids in 2021 | 2075-46-9

Recommanded Product: 4-Nitro-1H-pyrazole, 4-Nitro-1H-pyrazole, also known as 4-Nitropyrazole, is a useful research compound. Its molecular formula is C3H3N3O2 and its molecular weight is 113.08 g/mol. The purity is usually 95%.

4-Nitropyrazole, is a building block for the synthesis of various pharmaceutical compounds, including inhibitors, and therapeutic agents. It can be used for the synthesis of highly selective, brain-penetrant aminopyrazole LRRK2 Inhibitor, as a potentially viable treatment for Parkinson’s disease., 2075-46-9.

Pyrazoles are synthesized by the reaction of α,β-unsaturated aldehydes with hydrazine and subsequent dehydrogenation. 2075-46-9, formula is C3H3N3O2, Name is 4-Nitro-1H-pyrazole. Substituted pyrazoles are prepared by condensation of 1,3-diketones with hydrazine (Knorr-type reactions). For example, acetylacetone and hydrazine gives 3,5-dimethylpyrazole. Recommanded Product: 4-Nitro-1H-pyrazole.

Liu, Yong-zheng;Guo, Heng-jie research published 《 Solubility determination and crystallization thermodynamics of an intermediate in different organic solvents》, the research content is summarized as follows. This study reported the solid-liquid equilibrium solubility of 4-nitropyrazole at the temperature ranging 288.15 K to 328.15 K in methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, isobutanol, 1-pentanol, isoamyl alc., acetonitrile, acetone, Me acetate, Et acetate, THF and water, resp. All the experiments were performed with the gravimetric method under the ambient pressure of 0.1 MPa. At the temperature ranging from 288.15 K to 328.15 K, 4-nitropyrazole in methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, isobutanol, 1-pentanol, isoamyl alc., acetonitrile, acetone, Me acetate, Et acetate, THF and water exhibited the mole fraction solubility values of 0.109034-0.365964, 0.101321-0.310165, 0.087146-0.312564, 0.048152-0.238024, 0.079024-0.282653, 0.054890-0.247235, 0.071382-0.275687, 0.062864-0.21521, 0.039062-0.135087, 0.038140-0.058187, 0.007271-0.027222, 0.004829-026068, 0.004126-0.021975 and 0.002174-0.015095, resp. The acquired solubility data of 4-nitropyrazole in the selected solvents was correlated with the modified Apelblat equation, λh equation, the ideal equation, as well as the polynomial empirical equation. Next, the correlated values of the four equations were significantly consistent with the experiment values, and the polynomial empirical equation yielded more effective correlated results than other equations. In addition, the solvent effect on 4-nitropyrazole solubility was investigated with Kamlet-Taft parameters. Moreover, to clarify the sequence of solubility in a range of solvents, the mol. modeling studies were conducted. Activity coefficient was to access the solute-solvent mol. interactions. Furthermore, the thermodn. properties exhibited by 4-nitropyrazole (i.e., standard dissolution enthalpy (ΔdisHo), standard dissolution entropy (ΔdisSo) and standard dissolution Gibbs free energy (ΔdisGo)) in the selected solvents were characterized and then discussed from the experiment data. Besides, ΔdisHo, ΔdisSo and ΔdisGo at mean temperature in different pure solvents reached 22.40 kJ·mol-1-38.07 kJ·mol-1, 58.21 J·K-1·mol-1-81.10 J·K-1·mol-1 and 4.20 kJ·mol-1-13.13 kJ·mol-1, resp. As revealed from the result, 4-nitropyrazole in solvents selected showed a non-spontaneous and entropy-driven dissolution The present study could present the fundamental data to sep. 4-nitropyrazole.

Recommanded Product: 4-Nitro-1H-pyrazole, 4-Nitro-1H-pyrazole, also known as 4-Nitropyrazole, is a useful research compound. Its molecular formula is C3H3N3O2 and its molecular weight is 113.08 g/mol. The purity is usually 95%.

4-Nitropyrazole, is a building block for the synthesis of various pharmaceutical compounds, including inhibitors, and therapeutic agents. It can be used for the synthesis of highly selective, brain-penetrant aminopyrazole LRRK2 Inhibitor, as a potentially viable treatment for Parkinson’s disease., 2075-46-9.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Liu, Wen-Xing team published research in Nature Communications in 2019 | 37622-90-5

Computed Properties of 37622-90-5, Ethyl 4-pyrazolecarboxylate, also known as Ethyl pyrazole-4-carboxylate, is a useful research compound. Its molecular formula is C6H8N2O2 and its molecular weight is 140.14 g/mol. The purity is usually 95%.

Ethyl pyrazole-4-carboxylate is a low yield, transition metal salt that is used in the synthesis of pyrazoles. It can be synthesized by the reaction of sodium ethoxide with ethyl chloroformate and a Grignard reagent. Sodium ethoxide is added to a suspension of sodium chloride and dried ethyl chloroformate, followed by addition of magnesium turnings. The mixture is refluxed for one hour, cooled, and filtered to give crystals. Ethyl pyrazole-4-carboxylate is used in the preparation of ethyl esters from aliphatic alcohols by reacting with boron trichloride or phosphorus pentachloride. It participates in certain chemical reactions as a byproduct and can damage equipment during chemical reactions. The yield of this compound can be increased by using an excess amount of Grignard reagent or adding hexamethylenetetramine to the reaction mixture, 37622-90-5.

Pyrazoles are synthesized by the reaction of α,β-unsaturated aldehydes with hydrazine and subsequent dehydrogenation. 37622-90-5, formula is C6H8N2O2, Name is Ethyl 4-pyrazolecarboxylate. Substituted pyrazoles are prepared by condensation of 1,3-diketones with hydrazine (Knorr-type reactions). For example, acetylacetone and hydrazine gives 3,5-dimethylpyrazole. Computed Properties of 37622-90-5.

Liu, Wen-Xing;Yang, Zhusheng;Qiao, Zhi;Zhang, Long;Zhao, Ning;Luo, Sanzhong;Xu, Jian research published 《 Dynamic multiphase semi-crystalline polymers based on thermally reversible pyrazole-urea bonds》, the research content is summarized as follows. Constructing responsive and adaptive materials by dynamic covalent bonds is an attractive strategy in material design. Here, we present a kind of dynamic covalent polyureas which can be prepared from the highly efficient polyaddition reaction of pyrazoles and diisocyanates at ambient temperature in the absence of a catalyst. Owing to multiphase structural design, poly(pyrazole-ureas) (PPzUs) show excellent mech. properties and unique crystallization behavior. Besides, the crosslinked PPzUs can be successfully recycled upon heating (∼130°C) and the mol.-level blending of polyurea and polyurethane is realized. Theor. studies prove that the reversibility of pyrazole-urea bonds (PzUBs) arises from the unique aromatic nature of pyrazole and the N-assisting intramol. hydrogen transfer process. The PzUBs could further broaden the scope of dynamic covalent bonds and are very promising in the fields of dynamic materials.

Computed Properties of 37622-90-5, Ethyl 4-pyrazolecarboxylate, also known as Ethyl pyrazole-4-carboxylate, is a useful research compound. Its molecular formula is C6H8N2O2 and its molecular weight is 140.14 g/mol. The purity is usually 95%.

Ethyl pyrazole-4-carboxylate is a low yield, transition metal salt that is used in the synthesis of pyrazoles. It can be synthesized by the reaction of sodium ethoxide with ethyl chloroformate and a Grignard reagent. Sodium ethoxide is added to a suspension of sodium chloride and dried ethyl chloroformate, followed by addition of magnesium turnings. The mixture is refluxed for one hour, cooled, and filtered to give crystals. Ethyl pyrazole-4-carboxylate is used in the preparation of ethyl esters from aliphatic alcohols by reacting with boron trichloride or phosphorus pentachloride. It participates in certain chemical reactions as a byproduct and can damage equipment during chemical reactions. The yield of this compound can be increased by using an excess amount of Grignard reagent or adding hexamethylenetetramine to the reaction mixture, 37622-90-5.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Liu, Wen-dong team published research in Journal of Molecular Liquids in 2021 | 2075-46-9

2075-46-9, 4-Nitro-1H-pyrazole, also known as 4-Nitropyrazole, is a useful research compound. Its molecular formula is C3H3N3O2 and its molecular weight is 113.08 g/mol. The purity is usually 95%.

4-Nitropyrazole, is a building block for the synthesis of various pharmaceutical compounds, including inhibitors, and therapeutic agents. It can be used for the synthesis of highly selective, brain-penetrant aminopyrazole LRRK2 Inhibitor, as a potentially viable treatment for Parkinson’s disease., HPLC of Formula: 2075-46-9

Pyrazole is an organic compound with the formula C3H3N2H. It is a heterocycle characterized by a 5-membered ring of three carbon atoms and two adjacent nitrogen atoms, which are in ortho-substitution. 2075-46-9, formula is C3H3N3O2, Name is 4-Nitro-1H-pyrazole. Pyrazoles are a class of compounds that have the ring C3N2 with adjacent nitrogen atoms.Notable drugs containing a pyrazole ring are celecoxib (celebrex) and the anabolic steroid stanozolol. HPLC of Formula: 2075-46-9.

Liu, Wen-dong;Li, Yong-xiang;Cao, Duan-lin;Li, Zi-yang research published 《 Solubility and thermodynamic properties of an energetic intermediate in four binary solvents (water + n-butanol, n-pentanol, isobutanol and isoamyl alcohol)》, the research content is summarized as follows. The solubility of 4-nitropyrazole (4-NP) in four different binary solvents (i.e., water + n-butanol, water + n-pentanol, water + isobutanol, and water + isoamyl alc.) was firstly determined by a gravimetric method within a temperature range of 288.15 K to 328.15 K at atm. pressure (P = 0.1 MPa). The exptl. results indicated that the solubility of 4-NP in selected binary solvents increases with the increasing temperature and decreases with the rising water mass-fraction ranging. Besides, the (solid + liquid) equilibrium values in the studied solvents were correlated based on the modified Apelblat equation, Jouyban-Acree model, CNIBS/R-K model, and Wilson model. Moreover, all of the 324 exptl. values were used to correlate the parameters of the Wilson model, and the correlated results were superior to the other three models by comparing the average 104RMSD and R2. The average root-mean-square deviation (104RMSD) values were 1.87, 31.83, 6.04, and 1.18, resp. In addition, Hansen solubility parameters were employed to provide a reasonable illustration for the solubility order of 4-NP in the 4 binary mixed solvents, and the order of 4-NP solubility in each binary solvent mixture was the result of the combined effects of hydrogen bonding, dispersion, and polarity. Furthermore, the Wilson model was applied to calculate the thermodn. properties of 4-NP including mixing enthalpy, mixing entropy, and mixing free Gibbs energy in the studied binary solvent mixtures at a given temperature It is easy to understand that dissolution is an exothermic process from the results. Solid-liquid surface tension (γ) and surface entropy factor (f) of 4-NP were estimated by using the exptl. solubility data, and the results showed that γ and f increase with the increasing mass-fraction of water content in the binary mixed solvent and decrease with the increasing temperature The exptl. solubility values, model parameters, and thermodn. properties of 4-NP in different mixed solvents will provide the necessary support for its preparation, crystallization process, and further theor. studies.

2075-46-9, 4-Nitro-1H-pyrazole, also known as 4-Nitropyrazole, is a useful research compound. Its molecular formula is C3H3N3O2 and its molecular weight is 113.08 g/mol. The purity is usually 95%.

4-Nitropyrazole, is a building block for the synthesis of various pharmaceutical compounds, including inhibitors, and therapeutic agents. It can be used for the synthesis of highly selective, brain-penetrant aminopyrazole LRRK2 Inhibitor, as a potentially viable treatment for Parkinson’s disease., HPLC of Formula: 2075-46-9

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics