Day: October 25, 2021

In 2019 JMIR MHEALTH UHEALTH published article about HEART-RATE-VARIABILITY; WORK-LIFE BALANCE; BURNOUT; SURGEONS; STRESS; SATISFACTION; TONE in [Peters, Gregory Andrew; Wong, Matthew L.; Joseph, Joshua W.; Sanchez, Leon D.] Beth Israel Deaconess Med Ctr, Dept Emergency Med, 1 Deaconess Rd, Boston, MA 02215 USA; [Peters, Gregory Andrew; Wong, Matthew L.; Joseph, Joshua W.; Sanchez, Leon D.] Harvard Med Sch, Boston, MA 02115 USA in 2019, Cited 40. The Name is 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. Through research, I have a further understanding and discovery of 83-10-3. Quality Control of 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid

Background: The high prevalence of physician burnout, particularly in emergency medicine, has garnered national attention in recent years. Objective means of measuring stress while at work can facilitate research into stress reduction interventions, and wearable photoplethysmography (PPG) technology has been proposed as a potential solution. However, the use of low-burden wearable biosensors to study training and clinical practice among emergency physicians (EP) remains untested. Objective: This pilot study aimed to (1) determine the feasibility of recording on-shift photoplethysmographic data from EP, (2) assess the quality of these data, and (3) calculate standard pulse rate variability (PRV) metrics from the acquired dataset and examine patterns in these variables over the course of an academic year. Methods: A total of 21 EP wore PPG biosensors on their wrists during clinical work in the emergency department during a 9-hour shift. Recordings were collected during the first quarter of the academic year, then again during the fourth quarter of the same year for comparison. The overall rate of usable data collection per time was computed. Standard pulse rate (PR) and PRV metrics from these two time points were calculated and entered into Student t tests. Results: More than 400 hours of data were entered into these analyses. Interpretable data were captured during 8.54% of the total recording time overall. In the fourth quarter of the academic year compared with the first quarter, there was no significant difference in median PR (75.8 vs 76.8; P=.57), mean R-R interval (0.81 vs 0.80; P=.32), SD of R-R interval (0.11 vs 0.11; P=.93), root mean square of successive difference of R-R interval (0.81 vs 0.80; P=.96), low-frequency power (3.5×103 vs 3.4×103; P=.79), high-frequency power (8.5×103 vs 8.3×103; P=.91), or low-frequency to high-frequency ratio (0.42 vs 0.41; P=.43), respectively. Power estimates for each of these tests exceeded .90. A secondary analysis of the resident-only subgroup similarly showed no significant differences over time, despite power estimates greater than .80. Conclusions: Although the use of PPG biosensors to record real-time physiological data from EP while providing clinical care seems operationally feasible, this study fails to support the notion that such an approach can efficiently provide reliable estimates of metrics of interest. No significant differences in PR or PRV metrics were found at the end of the year compared with the beginning. Although these methods may offer useful applications to other domains, it may currently have limited utility in the contexts of physician training and wellness.

Quality Control of 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. About 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid, If you have any questions, you can contact Peters, GA; Wong, ML; Joseph, JW; Sanchez, LD or concate me.

Reference:
Patent; Shanghai Pharmaceutical Industry Institute; China Pharmaceutical Industry Zongyuan; Li Jianqi; Huang Daowei; Wang Wenya; Zhang Zhiguo; Jiang Ling; (45 pag.)CN107286140; (2017); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Ardalan, A; Yusefi, H; Rouhi, N; Banar, A; Sohrabizadeh, S in [Ardalan, Ali; Yusefi, Homa] Univ Tehran Med Sci, Sch Publ Hlth, Dept Disaster & Emergency Hlth, Tehran, Iran; [Ardalan, Ali] Harvard Univ, Harvard Humanitarian Initiat, Cambridge, MA 02138 USA; [Yusefi, Homa; Rouhi, Narges; Banar, Ahad] Minist Hlth & Med Educ, Dept Publ Hlth, Disaster Risk Management Off, Tehran, Iran; [Sohrabizadeh, Sanaz] Shahid Beheshti Univ Med Sci, Sch Publ Hlth & Safety, Dept Hlth Disasters & Emergencies, Tehran, Iran published Household disaster preparedness in the Islamic Republic of Iran: 2015 estimation in 2020, Cited 25. COA of Formula: C12H12N2O3. The Name is 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. Through research, I have a further understanding and discovery of 83-10-3.

Background: The Islamic Republic of Iran is at high risk of natural disasters. Households are the basic unit of society and they need to be prepared for disasters. Aims: This study assessed disaster preparedness among Iranian households in 2015. Methods: Using multistage cluster sampling, 2968 households in the catchment area of 53 public health departments in all 30 provinces of the Islamic Republic of Iran were surveyed on the disaster preparedness measures they had taken in the past year. The data collection questionnaire included 15 disaster preparedness measures. The mean preparedness score was calculated and its association with residence (urban versus rural), house ownership (owner versus renter) and education level of the head of the household (illiterate, elementary school, middle school, high school, university) was evaluated. Results: The mean score for household disaster preparedness was 9.3 out of 100 (95% confidence interval: 8.3-10.3). Multivariate analysis showed higher preparedness among rural than urban households (P = 0.02). Higher education level was positively associated with a higher preparedness score (P < 0.001), as was house ownership (P < 0.001). Conclusion: The level of household disaster preparedness in the Islamic Republic of Iran in 2015 was low. In line with the first priority for action of the Sendai Framework for Disaster Risk Reduction, the current study provides an overall picture of household disaster preparedness in the Islamic Republic of Iran. This estimation can be used as a baseline value for policy-making, planning, and evaluation of public awareness of disasters in the country. About 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid, If you have any questions, you can contact Ardalan, A; Yusefi, H; Rouhi, N; Banar, A; Sohrabizadeh, S or concate me.. COA of Formula: C12H12N2O3

Reference:
Patent; Shanghai Pharmaceutical Industry Institute; China Pharmaceutical Industry Zongyuan; Li Jianqi; Huang Daowei; Wang Wenya; Zhang Zhiguo; Jiang Ling; (45 pag.)CN107286140; (2017); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

In 2019 ANGEW CHEM INT EDIT published article about ASYMMETRIC-SYNTHESIS; SPIROPYRAZOLONES; ISOXAZOLINONES; DENDRALENES; ANNULATION; GENERATION; REACTIVITY; YLIDES in [Li, Long; Luo, Pengfei; Deng, Yuhua; Shao, Zhihui] Yunnan Univ, Key Lab Med Chem Nat Resource, State Key Lab Conservat & Utilizat Bioresources Y, Minist Educ,Sch Chem Sci & Technol, Kunming 650091, Yunnan, Peoples R China in 2019, Cited 65. The Name is 3-Methyl-1-p-tolyl-5-pyrazolone. Through research, I have a further understanding and discovery of 86-92-0. Computed Properties of C11H12N2O

The first Pd-catalyzed asymmetric allenylic [4+1] cycloaddition was successfully developed. Alternatively, tuning the Pd catalyst switched the reactivity toward an unprecedented [4+3] cycloaddition/cross-coupling. Ligands play a vital role in controlling the reaction pathway, allowing highly selective access to different products from identical substrates. Biological evaluation of the obtained compounds led to the discovery of new antitumor targets. A possible mechanism is proposed, suggesting two interesting catalytic cycles for the cycloaddition with palladium-butadienyls. This study also demonstrated the potential and utility of allenic esters as 1,4-biselectrophiles and C-4 synthons for participating in cycloaddition reactions.

Computed Properties of C11H12N2O. About 3-Methyl-1-p-tolyl-5-pyrazolone, If you have any questions, you can contact Li, L; Luo, PF; Deng, YH; Shao, ZH or concate me.

Reference:
Article; Zhang, Yong; Nie, Long-Jun; Luo, Liang; Mao, Jia-Xin; Liu, Jin-Xiang; Xu, Guo-Hai; Chen, Deliang; Luo, Hai-Qing; Tetrahedron; vol. 76; 7; (2020);,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Computed Properties of C12H12N2O3. I found the field of Geriatrics & Gerontology very interesting. Saw the article Potentially inappropriate prescribing in dementia, multi-morbidity and incidence of adverse health outcomes published in 2021, Reprint Addresses Delgado, J (corresponding author), Univ Exeter, Sch Med, Med Res, Epidemiol & Publ Hlth, Room 1-02,Coll House,St Lukes Campus,Heavitree Rd, Exeter EX1 2LU, Devon, England.. The CAS is 83-10-3. Through research, I have a further understanding and discovery of 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid.

Importance: treatment of dementia in individuals with comorbidities is complex, leading to potentially inappropriate prescribing (PIP). The impact of PIP in this population is unknown. Objective: to estimate the rate of PIP and its effect on adverse health outcomes (AHO). Design: retrospective cohort. Setting: primary care electronic health records linked to hospital discharge data from England. Subjects: 11,175 individuals with dementia aged over 65 years in 2016 and 43,463 age- and sex-matched controls. Methods: Screening Tool of Older Persons’ Prescriptions V2 defined PIP. Logistic regression tested associations with comorbidities at baseline, and survival analyses risk of incident AHO, adjusted for age, gender, deprivation and 14 comorbidities. Results: the dementia group had increased risk of PIP (73% prevalence; odds ratio [OR]: 1.92; confidence interval [CI]: 83-103%; P < 0.01) after adjusting for comorbidities. Most frequent PIP criteria were related to anti-cholinergic drugs and therapeutic duplication. Risk of PIP was higher in patients also diagnosed with coronary-heart disease (odds OR: 2.17; CI: 1.91-2.46; P < 0.01), severe mental illness (OR: 2.09; CI: 1.62-2.70; P < 0.01); and depression (OR: 1.81; CI: 1.62-2.01; P < 0.01). During follow-up (1 year), PIP was associated with increased all-cause mortality (hazard ratio: 1.14; CI: 1.021.26; P < 0.02), skin ulcer and pressure sores (hazard ratio: 1.66; CI: 1.12-2.46; P< 0.01), falls (hazard ratio: 1.37; CI: 1.15-1.63; P < 0.01), anaemia (hazard ratio: 1.61; CI: 1.10-2.38; P < 0.02) and osteoporosis (hazard ratio: 1.62; CI: 1.022.57; P < 0.04). Conclusion: patients with dementia frequently receive PIPs, and those who do are more likely to experience AHO. These results highlight the need to optimise medication in dementia patients, especially those with comorbidities. About 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid, If you have any questions, you can contact Delgado, J; Jones, L; Bradley, MC; Allan, LM; Ballard, C; Clare, L; Fortinsky, RH; Hughes, CM; Melzer, D or concate me.. Computed Properties of C12H12N2O3

Reference:
Patent; Shanghai Pharmaceutical Industry Institute; China Pharmaceutical Industry Zongyuan; Li Jianqi; Huang Daowei; Wang Wenya; Zhang Zhiguo; Jiang Ling; (45 pag.)CN107286140; (2017); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

I found the field of Chemistry very interesting. Saw the article Electrochemical oxidative C-H/N-H cross-coupling for C-N bond formation with hydrogen evolution published in 2019.0. Computed Properties of C5H8N2, Reprint Addresses Lei, AW (corresponding author), Jiangxi Normal Univ, Natl Res Ctr Carbohydrate Synth, Nanchang 330022, Jiangxi, Peoples R China.; Lei, AW (corresponding author), Wuhan Univ, IAS, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China.. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole

Under metal catalyst-free and exogenous-oxidant-free conditions, a series of C-3 aminated imidazo[1,2-a]pyridines were synthesized by electrochemical intermolecular oxidative C-H/N-H cross-coupling. Furthermore, by using a catalytic amount of ferrocene as the mediator, electrochemical intramolecular oxidative C-H/N-H cross-coupling for the synthesis of 10H-benzo[4,5] imidazo[1,2-a]indole derivatives has also been accomplished.

Computed Properties of C5H8N2. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Yu, Y; Yuan, Y; Liu, HL; He, M; Yang, MZ; Liu, P; Yu, BY; Dong, XC; Lei, AW or concate me.

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

COA of Formula: C12H12N2O3. Authors Rodrigues, T; Helene, O in AMER PHYSICAL SOC published article about in [Rodrigues, Tulio; Helene, Otaviano] Univ Sao Paulo, Phys Inst, Expt Phys Dept, POB 66318, BR-05315970 Sao Paulo, Brazil in 2020, Cited 43. The Name is 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid. Through research, I have a further understanding and discovery of 83-10-3

This study provides a phenomenological method to describe the exponential growth, saturation, and decay of coronavirus disease 2019 (COVID-19) deaths and infections via a Monte Carlo approach. The calculations connect Gompertz-type trial distributions of infected people per day with the distribution of deaths adopting two gamma distributions to account for the elapsed time that encompass the incubation and symptom onset to death periods. The analyses include death data from the USA, Brazil, Mexico, the United Kingdom (UK), India, and Russia, which comprise the four countries with the highest number of deaths and the four countries with the highest number of confirmed cases, as of August 07, 2020, according to theWorld Health Organization webpage. The Gompertz functions were fitted to the data of weekly averaged confirmed deaths per day by mapping the chi(2) values. The uncertainties, variances, and covariances of the model parameters were calculated by propagation, taking into account the standard errors of the data for each epidemiological week. The fitted functions for the average deaths per day for the USA and India have an upward trend, with the former having a higher growth rate and quite huge uncertainties. For Mexico, the UK, and Russia, the fits are consistent with a downward-sloping pattern. For Brazil we found a subtle trend down but with significant uncertainties. The USA, UK, and India data showed first peaks with higher growth rates compared with the second ones (4.2, 2.2, and 3.5 times higher, respectively), demonstrating the benefits of nonpharmacological interventions of sanitary measures and social distance flattening the secondary peaks of the pandemic. For the case of the USA, however, a third peak seems quite plausible, most likely related with the recent relaxation policies. Brazil’s data are satisfactorily described by two highly overlapped Gompertz functions with similar growth rates, suggesting a two-step process for the pandemic spreading. For the cases of Mexico and Russia single peaks with smoother slopes fitted the data satisfactorily. The 95% confidence intervals for the total number of deaths (x10(3)) predicted by the model for August 31, 2020, are 160 to 220, 110 to 130, 59 to 62, 41.3 to 41.4, 54 to 63, and 16.0 to 16.7 for the USA, Brazil, Mexico, the UK, India, and Russia, respectively. Our estimates for the point prevalences of infections are compared with some preliminary data from serological studies and/or model calculations focused on the USA, Brazil, and UK scenarios. The point prevalences and 95% confidence intervals for August 1, 2020, were estimated to be 5.7 (3.9-7.5)%, 8.9 (7.4-10.3)%, 9.3 (8.3-10.3)%, 5.7 (4.5-6.9)%, 0.9 (0.8-1.0%), and 1.2 (1.0-1.3)% for the USA, Brazil, Mexico, the UK, India, and Russia, respectively. The method represents an effective few-parameter framework to estimate the line shape of the infection curves and the uncertainties of the relevant parameters based on the actual death data of a pandemic.

COA of Formula: C12H12N2O3. About 1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid, If you have any questions, you can contact Rodrigues, T; Helene, O or concate me.

Reference:
Patent; Shanghai Pharmaceutical Industry Institute; China Pharmaceutical Industry Zongyuan; Li Jianqi; Huang Daowei; Wang Wenya; Zhang Zhiguo; Jiang Ling; (45 pag.)CN107286140; (2017); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

I found the field of Crystallography very interesting. Saw the article Crystal structure of dichlorido-1 kappa Cl,2 kappa Cl-(mu(2)-3,5-dimethyl-1H-pyrazolato-1 kappa N-2:2 kappa N-1)(3,5-dimethyl-1H-pyrazole-2 kappa N-2){mu-2-[(2-hydroxyethyl)amino-1 kappa N-2,O]ethanolato-1:2 kappa O-2:O}dicopper(II) published in 2020.0. SDS of cas: 67-51-6, Reprint Addresses Safarmamadov, SM (corresponding author), Tajik Natl Univ, Dept Chem, 17 Rudaki Ave, Dushanbe 734025, Tajikistan.. The CAS is 67-51-6. Through research, I have a further understanding and discovery of 3,5-Dimethyl-1H-pyrazole

The title compound, [Cu-2(C5H7N2)(C4H10NO2)Cl-2(C5H8N2)], is a pyrazolate aminoalcohol complex which contains two dimethylpyrazole molecules in monodentate and bidentate-bridged coordination modes and a monodeprotonated diethanolamine molecule. Both copper atoms are involved in the formation of non-planar five-membered chelate rings. One Cu atom is in a distorted tetrahedral environment formed by the pyridine nitrogen atom of the protonated dimethylpyrazole molecule, the N atom of the deprotonated bridged dimethylpyrazole, the Cl atom and the bridged O atom of the monodeprotonated diethanolamine. The second Cu atom has an intermediate environment between trigonal bipyramidal and square pyramidal, formed by the N atom of the deprotonated bridged dimethylpyrazole, the Cl atom and the N atom of the aminoalcohol, and two O atoms of the deprotonated and protonated OH groups. In the crystal, N-H center dot center dot center dot Cl hydrogen bonds link the molecules into antisymmetric chains running along the a-axis direction. Adjacent chains are connected by O-H center dot center dot center dot O hydrogen bonds involving the hydroxyl group as donor.

SDS of cas: 67-51-6. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Vynohradov, OS; Pavlenko, VA; Safyanova, IS; Znovjyak, K; Shova, S; Safarmamadov, SM or concate me.

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

In 2019.0 ACS OMEGA published article about RHENIUM(I) TRICARBONYL COMPLEXES; BRIDGING 1,2-DIAZINE LIGANDS; RE-I COMPLEX; CRYSTAL-STRUCTURES; PHOTOCATALYTIC REDUCTION; COPPER(II) COMPLEXES; SINGLET OXYGEN; EXCITED-STATE; MAGNETOSTRUCTURAL CORRELATIONS; ORGANOMETALLIC COMPLEXES in [Saldia, Marianela; Guzman, Nicolas; Palominos, Franco; Sandoval-Altamirano, Atalina; Pizarro, Nancy; Vega, Andres] Univ Andres Bello, Fac Ciencias Exactas, Dept Ciencias Quim, Av Quillota 980, Vina Del Mar 2531015, Chile; [Gunther, German] Univ Chile, Fac Ciencias Quim & Farmaceut, Dept Quim Organ & Fisicoquim, Sergio Livingstone 1007, Santiago 8380492, Chile; [Vega, Andres] CEDENNA, Ctr Desarrollo Nanociencia & Nanotecnol, Santiago, Chile; [Saldia, Marianela] Univ Cent, Fac Ciencias Salud, Inst Invest & Innovac Salud, Lord Cochrane 417, Santiago 8330507, Chile in 2019.0, Cited 90.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. HPLC of Formula: C5H8N2

The direct reaction of a series of substituted (1H-pyrazol-1-yl)pyridazine (L-I: 6-(1H-pyrazolyl)pyridazine; L-II: 3-chloro-6-(1H-pyrazole-1-yl)-pyridazine; L-III: 6-(1H-3,5-dimethylpyrazolyl)pyridazine-3-carboxylic acid; L-IV: 3,6-bis-N-pyrazolyl-pyridazine; and L-V: 3,6-bis-N-3-methylpyrazolyl-pyridazine) with the bromotricarbonyl(tetrahydrofuran)rhenium(I) dimer leads to the monometallic complexes [(L-X)Re(CO)(3)Br] (I-V), which displays a nonregular octahedral geometry around the Re-I center and a fac-isomerism for the carbonyl groups, whereas pyridazine and pyrazolyl rings remain highly coplanar after coordination to rhenium. Cyclic voltammetry shows one irreversible oxidation and one irreversible reduction for each compound as measured in N, N-dimethylformamide. Oxidation ranges from 0.94 V for III to 1.04 V for I and have been attributed to the Re-I/Re-II couple. In contrast, the reductions are ligand centered, ranging from -1.64 V for II to -1.90 V for III and V. Density functional theory calculations on the vertical one electron oxidized and one electron reduced species, using the gas-phase optimized geometry for the neutral complex confirm this assignment. Compounds I-V show two absorption bands, one around 410 nm (metal-to-ligand charge transfer (MLCT), Re-d pi -> pi*) and the other at similar to 300 nm (intraligand, pi -> pi*). Excitation at 400 nm at 77 K leads to unstructured and monoexponential emission with large Stokes shift, whose maxima vary between 570 (III) and 636 (II) nm. The quantum yields for these emissions in solution are intensified strongly going from air to argon equilibrated solution. Singlet oxygen quantum yields change from 0.03 (III) to 0.21 (IV). These data are consistent with emission from (MLCT)-M-3. The emission undergoes a bathochromic shift when R-1 is a pi-donating group (Cl or N-pyrazolyl) and a hypsochromic shift for a pi-acceptor (COOH). The bimolecular emission quenching rate constant by triethylamine (TEA) for II, IV, and V is 1.09, 0.745, and 0.583 x 10(8) M-1 s(-1), respectively. Photolysis in dichloromethane-CO2 saturated solution with TEA as a sacrificial electron donor leads in all cases to formic acid generation.

HPLC of Formula: C5H8N2. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Saldia, M; Guzman, N; Palominos, F; Sandoval-Altamirano, A; Gunther, G; Pizarro, N; Vega, A or concate me.

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

An article Polycyclic N-oxides: high performing, low sensitivity energetic materials WOS:000459474300009 published article about FUSED HETEROCYCLE; CRYSTAL PACKING; CHEMISTRY; TETRAZINE; REDOX in [Snyder, Christopher J.; Wells, Lucille A.; Chavez, David E.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA; [Imler, Gregory H.; Parrish, Damon A.] US Navy, Res Lab, Washington, DC 20375 USA in 2019.0, Cited 46.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Name: 3,5-Dimethyl-1H-pyrazole

Polycyclic N-oxides were developed based on the heterocycles 1,2,4,5-tetrazine and 4H, 8H-difurazano[3,4-b:3′,4′-e]pyrazine. The new compounds are energetic and have excellent explosive properties, while maintaining low mechanical sensitivities. Most notably, compound 7 is thermally stable, insensitive, and has superior detonation properties to the state-of-the-art insensitive high explosive, 1,3,5-triamino-2,4,6-trinitrobenzene.

Name: 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Snyder, CJ; Wells, LA; Chavez, DE; Imler, GH; Parrish, DA or concate me.

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

SDS of cas: 67-51-6. In 2020.0 INORG CHIM ACTA published article about ANTICANCER; QUINONES; CANCER; GLUTATHIONE; DERIVATIVES; ANTIFUNGAL; ACTIVATION; RUTHENIUM; REDUCTASE; DESIGN in [Purkait, Kallol; Mukherjee, Arindam] Indian Inst Sci Educ & Res Kolkata, Dept Chem Sci, Nadia 741246, India in 2020.0, Cited 62.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.

Quinone based compounds display activation in hypoxia, an environment prevalent in tumours. We have synthesized a bis(pyrazole) based 1,4-quinone compound suitable for metal chelation. The quinone (L2) converted to hydroquinone (H(2)L1) during the complex synthesis leading to [Ru-II(eta(6)-p-cym)(H(2)L1)Cl](PF6) (1). We found from ‘FINMR studies that in the methanolic solution L2 stoichiometrically converted to H(2)L1 while oxidizing the methanol to formaldehyde. L2 crystallized in monoclinic space group I2/a while complex 1 crystallizes in P2(1)/c. Cyclic voltammetry of the redox non-innocent L2 showed quasi-reversible (Delta Ep = 67 mV) redox behaviour with E-1/2 at 0.12 V w.r.t. NHE. Complex 1 is stable at pH 7.4 in presence of 4 mM chloride and does not hydrolyse even up to 24 h. L2 showed IC50, values of 155 and 123 mu M against metastatic breast adenocarcinoma (MDA-MB231) and pancreatic carcinoma (MIA PaCa-2) respectively. L2 gets activated by ca. 2.7-fold in hypoxia against MIA PaCa-2 cells. The mechanistic studies showed ROS accumulation and oxidation of NADH to NAD(+), which may be responsible for the cytotoxicity. The reactivity studies showed that conversion to hydroquinone by reaction with NADH or glutathione is irreversible. Complex 1 is not cytotoxic up to 100 mu M in normoxia or hypoxia. Complex 1 displays irreversible redox behavior in cyclic voltammetry displaying two overlapping oxidation peaks at 1.00 and 1.57 V w.r.t. NHE, which may be assigned to the conversion of hydroquinone to quinone and Ru-II -> Ru-III respectively.

SDS of cas: 67-51-6. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Purkait, K; Mukherjee, A or concate me.

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