Tag: M.W=100-150

Dorgan, Roderick J. J.’s team published research in Journal of Chemical Research, Synopses in | CAS: 3553-12-6

Journal of Chemical Research, Synopses published new progress about 3553-12-6. 3553-12-6 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Amine,Amide, name is 3-Acetamidopyrazole, and the molecular formula is C5H7N3O, Safety of 3-Acetamidopyrazole.

Dorgan, Roderick J. J. published the artcileN-Alkyl and N-acyl derivatives of 3(5)-aminopyrazole, Safety of 3-Acetamidopyrazole, the publication is Journal of Chemical Research, Synopses (1979), 198, database is CAplus.

3(5)-Aminopyrazole (I) underwent benzylation on the exocyclic N to give II [R = H, R1 = R2 = CH2Ph; R = R1 = H, R2 = CH2Ph (III)] whereas acetylation gave II (R = R1 = Ac, R2 = H), which on subsequent benzylation gave II (R = CH2Ph, R1 = Ac, R2 = H) and IV (R = CH2Ph, R1 = H, R2 = Ac) (V). In the presence of MeCOCH2CO2Et, III gave the pyrazolo[1,5-a]pyrimidine VI (R = CH2Ph) which was debenzylated to VI (R = H). PhCH2NHNH2 reacted with CH2:CClCN to give IV (R = CH2Ph, R1 = R2 = H) which on acetylation gave V. I with phthalic anhydride gave II (R = H, NR1R2 = phthalimido) which on benzylation and benzyloxymethylation gave II (R = CH2Ph, R1R2 as before) and IV (R = CH2OCH2Ph, R1R2 as before), resp.

Journal of Chemical Research, Synopses published new progress about 3553-12-6. 3553-12-6 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Amine,Amide, name is 3-Acetamidopyrazole, and the molecular formula is C5H7N3O, Safety of 3-Acetamidopyrazole.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Dwyer, Michael P.’s team published research in Bioorganic & Medicinal Chemistry Letters in 21 | CAS: 724710-02-5

Bioorganic & Medicinal Chemistry Letters published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C3H5BN2O2, Recommanded Product: (1H-Pyrazol-5-yl)boronic acid.

Dwyer, Michael P. published the artcileDiscovery of pyrazolo[1,5-a]pyrimidine-based CHK1 inhibitors: A template-based approach-Part 1, Recommanded Product: (1H-Pyrazol-5-yl)boronic acid, the publication is Bioorganic & Medicinal Chemistry Letters (2011), 21(1), 467-470, database is CAplus and MEDLINE.

The synthesis and hit-to-lead SAR development of a pyrazolo[1,5-a]pyrimidine hit I is described leading to a series of potent, selective CHK1 inhibitors such as compound II. The further utility of the pyrazolo[1,5-a]pyrimidine template for the development of potent, selective kinase inhibitors is detailed.

Bioorganic & Medicinal Chemistry Letters published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C3H5BN2O2, Recommanded Product: (1H-Pyrazol-5-yl)boronic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Caroff, Eva’s team published research in Bioorganic & Medicinal Chemistry Letters in 24 | CAS: 763120-58-7

Bioorganic & Medicinal Chemistry Letters published new progress about 763120-58-7. 763120-58-7 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is 1H-Pyrazole-4-boronic acid, and the molecular formula is C3H5BN2O2, Recommanded Product: 1H-Pyrazole-4-boronic acid.

Caroff, Eva published the artcileOptimization of 2-phenyl-pyrimidine-4-carboxamides towards potent, orally bioavailable and selective P2Y12 antagonists for inhibition of platelet aggregation, Recommanded Product: 1H-Pyrazole-4-boronic acid, the publication is Bioorganic & Medicinal Chemistry Letters (2014), 24(17), 4323-4331, database is CAplus and MEDLINE.

2-Phenyl-4-pyrimidinecarboxamide analogs were identified as P2Y12 antagonists. Optimization of the carbon-linked or nitrogen-linked substituent at the 6-position of the pyrimidine ring provided compounds with excellent ex vivo potency in the platelet aggregation assay in human plasma. One compound met the objectives for activity, selectivity and ADMET properties. The synthesis of the target compounds was achieved using (γS)-γ-[[(6-chloro-2-phenyl-4-pyrimidinyl)carbonyl]amino]-4-(ethoxycarbonyl)-δ-oxo-1-piperazinepentanoic acid 1,1-dimethylethyl ester and (γS)-4-(butoxycarbonyl)-γ-[[(6-chloro-2-phenyl-4-pyrimidinyl)carbonyl]amino]-δ-oxo-1-piperazinepentanoic acid 1,1-dimethylethyl ester as key intermediates.

Bioorganic & Medicinal Chemistry Letters published new progress about 763120-58-7. 763120-58-7 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is 1H-Pyrazole-4-boronic acid, and the molecular formula is C3H5BN2O2, Recommanded Product: 1H-Pyrazole-4-boronic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Li, Yun’s team published research in Crystal Growth & Design in 20 | CAS: 19959-71-8

Crystal Growth & Design published new progress about 19959-71-8. 19959-71-8 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Pyridine, name is 4-(1H-Pyrazol-4-yl)pyridine, and the molecular formula is C8H7N3, Computed Properties of 19959-71-8.

Li, Yun published the artcileA Metal-Ligand Layer Compatible with Various Types of Pillars for New Porous Coordination Polymers, Computed Properties of 19959-71-8, the publication is Crystal Growth & Design (2020), 20(10), 7021-7026, database is CAplus.

Pillared-layer structures are classic for porous coordination polymers (PCPs), but suitable metal-ligand layers for such structures are rare. Here, the authors report a cationic {Zn2(pzdc)}+ (H3pzdc = 3,5-pyrazoledicarboxylic acid) layer compatible with various types of pillar ligands. Solvothermal reactions of Zn(NO3)2·6H2O and H3pzdc with 4-(pyridin-4-yl)-1H-pyrazole (Hpypz), 1,4-benzenedicarboxylic acid (H2bdc), or 2-amino-1,4-benzenedicarboxylic acid (H2abdc) in a mixed solvent of H2O and N,N-dimethylformamide (DMF) produced three pillared-layer PCPs, namely [Zn4(pzdc)2(pypz)2]·guest (1), [Zn4(pzdc)2(bdc)(H2O)1.53(DMF)0.47]·guest (2), and [Zn4(pzdc)2(abdc)(H2O)1.52(DMF)0.48]·guest (3), resp. Single-crystal X-ray analyses revealed that the {Zn2(pzdc)}+ layers are fully pillared by pypz– in 1 and half pillared by bdc2- and abdc2- in 2 and 3, because the anionic pillars possess different charges. Consequently, 1 shows one-dimensional (1D) channels with a small porosity and 2 and 3 show 2D channels with large porosities, both of which were verified by N2 and CO2 adsorption isotherms. While 1 has no coordinated solvent mols. and exhibits a high water stability, 2 and 3 possess coordinated solvent mols. and quickly transform to crystals of 2D coordination networks in water, [Zn4(pzdc)2(OH)2(H2O)6]·H2bdc·4H2O (4) and [Zn4(pzdc)2(H2abdc)(OH)2(H2O)5]·2H2O (5), resp., which can be further exfoliated into ultrathin nanosheets in an ammonia solution A new metal-ligand layer can adopt various types of pillars to give a series of pillared-layer PCPs with tunable pillar densities, porosities, and water stabilities. The water-instable ones can be exfoliated to ultrathin nanosheets with intermediates suitable for single-crystal diffraction characterization.

Crystal Growth & Design published new progress about 19959-71-8. 19959-71-8 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Pyridine, name is 4-(1H-Pyrazol-4-yl)pyridine, and the molecular formula is C8H7N3, Computed Properties of 19959-71-8.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Caroff, Eva’s team published research in Bioorganic & Medicinal Chemistry Letters in 24 | CAS: 763120-58-7

Bioorganic & Medicinal Chemistry Letters published new progress about 763120-58-7. 763120-58-7 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is 1H-Pyrazole-4-boronic acid, and the molecular formula is C3H5BN2O2, Recommanded Product: 1H-Pyrazole-4-boronic acid.

Caroff, Eva published the artcileOptimization of 2-phenyl-pyrimidine-4-carboxamides towards potent, orally bioavailable and selective P2Y12 antagonists for inhibition of platelet aggregation, Recommanded Product: 1H-Pyrazole-4-boronic acid, the publication is Bioorganic & Medicinal Chemistry Letters (2014), 24(17), 4323-4331, database is CAplus and MEDLINE.

2-Phenyl-4-pyrimidinecarboxamide analogs were identified as P2Y12 antagonists. Optimization of the carbon-linked or nitrogen-linked substituent at the 6-position of the pyrimidine ring provided compounds with excellent ex vivo potency in the platelet aggregation assay in human plasma. One compound met the objectives for activity, selectivity and ADMET properties. The synthesis of the target compounds was achieved using (γS)-γ-[[(6-chloro-2-phenyl-4-pyrimidinyl)carbonyl]amino]-4-(ethoxycarbonyl)-δ-oxo-1-piperazinepentanoic acid 1,1-dimethylethyl ester and (γS)-4-(butoxycarbonyl)-γ-[[(6-chloro-2-phenyl-4-pyrimidinyl)carbonyl]amino]-δ-oxo-1-piperazinepentanoic acid 1,1-dimethylethyl ester as key intermediates.

Bioorganic & Medicinal Chemistry Letters published new progress about 763120-58-7. 763120-58-7 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is 1H-Pyrazole-4-boronic acid, and the molecular formula is C3H5BN2O2, Recommanded Product: 1H-Pyrazole-4-boronic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Li, Yun’s team published research in Crystal Growth & Design in 20 | CAS: 19959-71-8

Crystal Growth & Design published new progress about 19959-71-8. 19959-71-8 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Pyridine, name is 4-(1H-Pyrazol-4-yl)pyridine, and the molecular formula is C8H7N3, Computed Properties of 19959-71-8.

Li, Yun published the artcileA Metal-Ligand Layer Compatible with Various Types of Pillars for New Porous Coordination Polymers, Computed Properties of 19959-71-8, the publication is Crystal Growth & Design (2020), 20(10), 7021-7026, database is CAplus.

Pillared-layer structures are classic for porous coordination polymers (PCPs), but suitable metal-ligand layers for such structures are rare. Here, the authors report a cationic {Zn2(pzdc)}+ (H3pzdc = 3,5-pyrazoledicarboxylic acid) layer compatible with various types of pillar ligands. Solvothermal reactions of Zn(NO3)2·6H2O and H3pzdc with 4-(pyridin-4-yl)-1H-pyrazole (Hpypz), 1,4-benzenedicarboxylic acid (H2bdc), or 2-amino-1,4-benzenedicarboxylic acid (H2abdc) in a mixed solvent of H2O and N,N-dimethylformamide (DMF) produced three pillared-layer PCPs, namely [Zn4(pzdc)2(pypz)2]·guest (1), [Zn4(pzdc)2(bdc)(H2O)1.53(DMF)0.47]·guest (2), and [Zn4(pzdc)2(abdc)(H2O)1.52(DMF)0.48]·guest (3), resp. Single-crystal X-ray analyses revealed that the {Zn2(pzdc)}+ layers are fully pillared by pypz– in 1 and half pillared by bdc2- and abdc2- in 2 and 3, because the anionic pillars possess different charges. Consequently, 1 shows one-dimensional (1D) channels with a small porosity and 2 and 3 show 2D channels with large porosities, both of which were verified by N2 and CO2 adsorption isotherms. While 1 has no coordinated solvent mols. and exhibits a high water stability, 2 and 3 possess coordinated solvent mols. and quickly transform to crystals of 2D coordination networks in water, [Zn4(pzdc)2(OH)2(H2O)6]·H2bdc·4H2O (4) and [Zn4(pzdc)2(H2abdc)(OH)2(H2O)5]·2H2O (5), resp., which can be further exfoliated into ultrathin nanosheets in an ammonia solution A new metal-ligand layer can adopt various types of pillars to give a series of pillared-layer PCPs with tunable pillar densities, porosities, and water stabilities. The water-instable ones can be exfoliated to ultrathin nanosheets with intermediates suitable for single-crystal diffraction characterization.

Crystal Growth & Design published new progress about 19959-71-8. 19959-71-8 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Pyridine, name is 4-(1H-Pyrazol-4-yl)pyridine, and the molecular formula is C8H7N3, Computed Properties of 19959-71-8.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Desroy, Nicolas’s team published research in Bioorganic & Medicinal Chemistry in 17 | CAS: 724710-02-5

Bioorganic & Medicinal Chemistry published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C3H5BN2O2, Safety of (1H-Pyrazol-5-yl)boronic acid.

Desroy, Nicolas published the artcileTowards Gram-negative antivirulence drugs: New inhibitors of HldE kinase, Safety of (1H-Pyrazol-5-yl)boronic acid, the publication is Bioorganic & Medicinal Chemistry (2009), 17(3), 1276-1289, database is CAplus and MEDLINE.

Gram-neg. bacteria lacking heptoses in their lipopolysaccharide (LPS) display attenuated virulence and increased sensitivity to human serum and to some antibiotics. Thus inhibition of bacterial heptose synthesis represents an attractive target for the development of new antibacterial agents. HldE is a bifunctional enzyme involved in the synthesis of bacterial heptoses. Development of a biochem. assay suitable for high-throughput screening allowed the discovery of inhibitors 1 and 2 of HldE kinase. Study of the structure-activity relation of this series of inhibitors led to highly potent compounds

Bioorganic & Medicinal Chemistry published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C3H5BN2O2, Safety of (1H-Pyrazol-5-yl)boronic acid.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Wu, Yuchuan’s team published research in Bioorganic & Medicinal Chemistry Letters in 22 | CAS: 724710-02-5

Bioorganic & Medicinal Chemistry Letters published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C24H12, Product Details of C3H5BN2O2.

Wu, Yuchuan published the artcileDiscovery of potent and selective matrix metalloprotease 12 inhibitors for the potential treatment of chronic obstructive pulmonary disease (COPD), Product Details of C3H5BN2O2, the publication is Bioorganic & Medicinal Chemistry Letters (2012), 22(1), 138-143, database is CAplus and MEDLINE.

Chronic obstructive pulmonary disease (COPD) is an inflammatory lung disease associated with irreversible progressive airflow limitation. Matrix metalloproteinase-12 (MMP-12) has been characterized to be one of the major proteolytic enzymes to induce airway remodeling, destruction of elastin and the aberrant remodeling of damaged alveoli in COPD and asthma. The goal of this project is to develop and identify an orally potent and selective small mol. inhibitor of MMP-12 for treatment of COPD and asthma. Syntheses and structure-activity relationship (SAR) studies of a series of dibenzofuran (DBF) sulfonamides as MMP-12 inhibitors are described. Potent inhibitors of MMP-12 with excellent selectivity against other MMPs were identified. Compound I (MMP118), which exhibits excellent oral efficacy in the MMP-12 induced ear-swelling inflammation and lung inflammation mouse models, had been successfully advanced into Development Track status.

Bioorganic & Medicinal Chemistry Letters published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C24H12, Product Details of C3H5BN2O2.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Naus, Petr’s team published research in Collection of Czechoslovak Chemical Communications in 73 | CAS: 724710-02-5

Collection of Czechoslovak Chemical Communications published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C3H5BN2O2, Application In Synthesis of 724710-02-5.

Naus, Petr published the artcileCytostatic and antiviral 6-arylpurine ribonucleosides IX. synthesis and evaluation of 6-substituted 3-deazapurine ribonucleosides, Application In Synthesis of 724710-02-5, the publication is Collection of Czechoslovak Chemical Communications (2008), 73(5), 665-678, database is CAplus.

A series of 3-deazapurine ribonucleosides bearing diverse C-substituents (alkyl, aryl and heteroaryl) in the position 6 were prepared by Pd-catalyzed cross-coupling reactions of either free 6-chloro-3-deazapurine ribonucleoside or its acetyl protected congener followed by deprotection. An improved synthesis of the starting 4-chloro-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-imidazo[4,5-c]pyridine was developed by the application of Vorbruggen glycosylation of silylated nucleobase with 1,2,3,5-tetra-O-acetyl-β-D-ribofuranose. None of title compounds showed any considerable cytostatic or antiviral activity.

Collection of Czechoslovak Chemical Communications published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C3H5BN2O2, Application In Synthesis of 724710-02-5.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Siu, Tony’s team published research in Bioorganic & Medicinal Chemistry Letters in 24 | CAS: 724710-02-5

Bioorganic & Medicinal Chemistry Letters published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C14H28O5S, Product Details of C3H5BN2O2.

Siu, Tony published the artcileThe discovery of reverse tricyclic pyridone JAK2 inhibitors. Part 2: Lead optimization, Product Details of C3H5BN2O2, the publication is Bioorganic & Medicinal Chemistry Letters (2014), 24(6), 1466-1471, database is CAplus and MEDLINE.

This communication discusses the discovery of novel reverse tricyclic pyridones as inhibitors of Janus kinase 2 (JAK2). By using a kinase cross screening approach coupled with mol. modeling, a unique inhibitor-water interaction was discovered to impart excellent broad kinase selectivity. Improvements in intrinsic potency were achieved by utilizing a rapid library approach, while targeted structural changes to lower lipophilicity led to improved rat pharmacokinetics. This multi-pronged approach led to the identification of 31, which demonstrated encouraging rat pharmacokinetics, in vivo potency, and excellent off-target kinase selectivity.

Bioorganic & Medicinal Chemistry Letters published new progress about 724710-02-5. 724710-02-5 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Boronic acid and ester,Pyrazole,Boronic Acids,Boronic acid and ester, name is (1H-Pyrazol-5-yl)boronic acid, and the molecular formula is C14H28O5S, Product Details of C3H5BN2O2.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics