Pyrazines

Recently I am researching about CROSS-COUPLING REACTIONS; CARBOXYLIC-ACIDS; QUINOLINE; SITE; DERIVATIVES; CARBONYLATION; COMPLEXES; RECEPTOR, Saw an article supported by the Education Department of Henan Province [20 A210023]; Henan Agricultural University [30500567, 30500701]; Key Science and the Technology Program of Science and Technology Department of Henan Province [152102210058, 122102210129]. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Hu, JY; Ye, XF; Hao, S; Zhao, QR; Zhao, MQ; Wei, YW; Wu, ZY; Wang, N; Ji, XM. The CAS is 98-97-5. Through research, I have a further understanding and discovery of Pyrazine-2-carboxylic acid. HPLC of Formula: C5H4N2O2

A highly efficient and simple procedure for the synthesis quinoline-3-carboxamides and their analogues via amidation reaction of quinoline-3-carboxylic acids with tetraalkylthiuram disulfides has been developed. The reaction proceeds efficiently under simple reaction conditions and features the generality of broad scope of substrates with good yields. This protocol provides a convenient procedure for the synthesis of various aza-heteroaromatic carboxamides, which is of pharmaceutical interest.

HPLC of Formula: C5H4N2O2. Welcome to talk about 98-97-5, If you have any questions, you can contact Hu, JY; Ye, XF; Hao, S; Zhao, QR; Zhao, MQ; Wei, YW; Wu, ZY; Wang, N; Ji, XM or send Email.

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

An article Covalent coupling of tuberculostatic agents and graphene oxide: A promising approach for enhancing and extending their antimicrobial applications WOS:000455471100063 published article about MYCOBACTERIUM-TUBERCULOSIS; ANTIBACTERIAL ACTIVITY; RAMAN-SPECTROSCOPY; CONTROLLED-RELEASE; HYBRID MATERIALS; GRAPHITE; DELIVERY; NANOMATERIALS; CYTOTOXICITY; DOXORUBICIN in [Tudos, Madalina; Anghel, Elena Maria; Culita, Daniela C.; Somacescu, Simona; Calderon-Moreno, Jose] Ilie Murgulescu Inst Phys Chem, 202 Splaiul Independentei, Bucharest 060021, Romania; [Tecuceanu, Victorita; Dumitrascu, Florea D.] Ctr Organ Chem, 202A Spiaiul Independentei, Bucharest 060023, Romania; [Dracea, Olguta] Cantacussino Natl Inst Res Microbiol & Immunol, 103 Splaiul Independentei, Bucharest 050096, Romania; [Popa, Marcela; Marutescu, Luminita; Curutiu, Carmen; Chifiriuc, Mariana C.] Univ Bucharest, Microbiol Immunol Dept, Fac Biol, Aleea Portocalelor 1-3, Bucharest 060101, Romania; [Popa, Marcela; Marutescu, Luminita; Chifiriuc, Mariana C.] Univ Bucharest ICUB, Res Inst, Bvd M Kogalniceanu 36-46, Bucharest 50107, Romania; [Bleotu, Coralia] Stefan S Nicolau Virol Inst, Mihai Bravu 285, Bucharest 030317, Romania in 2019, Cited 57. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5. Product Details of 98-97-5

In this work, we present a simple, two-stage method for the preparation of new and efficient antimicrobial hybrid systems, based on isoniazid and pyrazine-2-carbohydrazide tuberculostatic agents covalently linked to graphene oxide. In the first step, the carboxyl groups of graphene oxide are activated by transforming them into the corresponding acid chloride groups, which, in the second step, will react with the amino groups of the two drugs. Pyrazine-2-carbohydrazide was obtained from pyrazinoic acid and hydrazine hydrate and was confirmed by nuclear magnetic resonance spectroscopy. The materials have been characterized by elemental analysis, infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. Their antimicrobial activity was tested on mycobacterial (Mycobacterium terrae), as well as on Gram-negative bacteria (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853), Gram-positive bacteria (Staphylococcus aureus ATCC 6538, Staphylococcus aureus ATCC 25923) and fungal (Candida albicans ATCC 10231), in planktonic and biofilm growth state. The biocompatibility of the tested compounds was assessed in vitro by live-dead fluorescence staining and flow cytometry. The results of this study have shown that the functionalization of graphene oxide with isoniazid and pyrazine-2-carbohydrazide both enhanced the anti-mycobacterial activity of the respective drugs and extended their antimicrobial spectrum towards other microbial strains, in planktonic and biofilm growth state, showing a promising potential for mitigating the impact of antimicrobial resistance and the deleterious effects of microbial biofilms. At the active tuberculostatic concentrations, the tested compounds exhibit very low cytotoxicity and do not interfere with the cellular cycle of Hep-2 cells. The flow cytometry and live/dead fluorescence staining proved that the tested compounds exhibit a microbicidal effect through induction of cellular lesions, consecutive to membrane depolarization.

Welcome to talk about 98-97-5, If you have any questions, you can contact Tudos, M; Anghel, EM; Culita, DC; Somacescu, S; Calderon-Moreno, J; Tecuceanu, V; Dumitrascu, FD; Dracea, O; Popa, M; Marutescu, L; Bleotu, C; Curutiu, C; Chifiriuc, MC or send Email.. Product Details of 98-97-5

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

An article LMP2 Inhibitors as a Potential Treatment for Alzheimer’s Disease WOS:000526405300024 published article about ANTIINFLAMMATORY DRUGS; IMMUNOPROTEASOME; DESIGN; CELLS; RISK in [Bhattarai, Deepak; Lee, Min Jae; Miller, Zachary; Kim, Kyung Bo] Univ Kentucky, Dept Pharmaceut Sci, Lexington, KY 40536 USA; [Baek, Ahruem; Baek, Yu Mi; Kim, Dong-Eun] Konkuk Univ, Dept Biosci & Biotechnol, Seoul 05029, South Korea; [Yeo, In Jun; Hong, Jin Tae] Chungbuk Natl Univ, Coll Pharm, Cheongju 28160, Chungbuk, South Korea; [Lee, Sukyeong] Baylor Coll Med, Verna & Marrs McLean Dept Biochem & Mol Biol, Houston, TX 77030 USA in 2020, Cited 43. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5. Name: Pyrazine-2-carboxylic acid

The immunoproteasome (iP), an inducible proteasome variant harboring three immunosubunits, low molecular mass polypeptide-2 (LMP2), multicatalytic endopeptidase complex subunit-1, and low molecular mass polypeptide-7 (LMP7), is involved in multiple facets of inflammatory responses. We recently reported that YU102, a dual inhibitor of the iP subunit LMP2 and the constitutive proteasome catalytic subunit beta 1, ameliorates cognitive impairments in mouse models of Alzheimer’s disease (AD) independently of amyloid deposits. To investigate whether inhibition of LMP2 is sufficient to improve the cognitive functions of AD mice, here we prepared 37 YU102 analogues and identified a potent LMP2 inhibitor DB-310 (28) (IC50: 80.6 nM) with improved selectivity and permeability in cells overexpressing ABCB1 transporters. We show that DB-310 induces suppression of IL-1 alpha production in microglia cells and improves cognitive functions in the Tg2576 transgenic mouse model of AD. This study supports that inhibition of LMP2 is a promising therapeutic strategy for treatment of AD.

Name: Pyrazine-2-carboxylic acid. Welcome to talk about 98-97-5, If you have any questions, you can contact Bhattarai, D; Lee, MJ; Baek, A; Yeo, IJ; Miller, Z; Baek, YM; Lee, S; Kim, DE; Hong, JT; Kim, KB or send Email.

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Khan, MT; Chinnasamy, S; Cui, ZL; Irfan, M; Wei, DQ in [Khan, Muhammad Tahir] Capital Univ Sci & Technol, Dept Bioinformat & Biosci, Islamabad, Pakistan; [Chinnasamy, Sathishkumar; Wei, Dong-Qing] Shanghai Jiao Tong Univ, State Key Lab Microbial Metab, Sch Life Sci & Biotechnol, Minist Educ, Shanghai 200240, Peoples R China; [Chinnasamy, Sathishkumar; Wei, Dong-Qing] Shanghai Jiao Tong Univ, Joint Lab Int Cooperat Metab & Dev Sci, Minist Educ, Shanghai 200240, Peoples R China; [Wei, Dong-Qing] Peng Cheng Lab, Vanke Cloud City Phase 1 Bldg 8,Xili St, Shenzhen 518055, Guangdong, Peoples R China; [Cui, Zhilei] Shanghai Jiao Tong Univ, Dept Resp Med, XinHua Hosp, Sch Med, Shanghai, Peoples R China; [Irfan, Muhammad] Univ Florida, Dept Microbiol & Cell Sci, Genet Inst, Gainesville, FL 32611 USA; [Irfan, Muhammad] Univ Florida, Inst Food & Agr Sci, Gainesville, FL 32611 USA published Mechanistic analysis of A46V, H57Y, and D129N in pyrazinamidase associated with pyrazinamide resistance in 2020, Cited 58. Quality Control of Pyrazine-2-carboxylic acid. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5.

Pyrazinamide (PZA) is a component of first-line drugs, active against latent Mycobacterium tuberculosis (MTB) isolates. The prodrug is activated into the active form, pyrazinoic acid (POA) via pncA gene-encoded pyrazinamidase (PZase). Mutations in pncA have been reported, most commonly responsible for PZA-resistance in more than 70% of the resistant cases. In our previous study, we detected many mutations in PZase among PZA-resistance MTB isolates including A46V, H71Y, and D129N. The current study was aimed to investigate the molecular mechanism of PZA-resistance behind mutants (MTs) A46V, H71Y, and D129N in comparison with the wild type (WT) through molecular dynamic (MD) simulation. MTB positive samples were subjected to PZA drug susceptibility testing (DST) against critical concentration (100ug/ml). The resistant samples were subjected to pncA sequencing. Thirty-six various mutations have been observed in the coding region of pncA of PZA-resistant isolates (GenBank accession No. MH461111) including A46V, H71Y, and D129N. The post-simulation analysis revealed a significant variation in MTs structural dynamics as compared to the WT. Root means square deviations (RMSD) and Root means square fluctuation (RMSF) has been found in variation between WT and MTs. Folding effect and pocket volume were altered in MTs when compared with WT. Geometric matching supports the effect of mutation A46V, H71Y, and D129N on PZase structure that may have an insight effect on PZase dynamics, making them vulnerable to convert pro-PZA into active form, POA. In conclusion, the current analyses will provide useful information behind PZA-resistance for better management of drug-resistant TB. (C) 2020 The Author(s). Published by Elsevier B.V. on behalf of King Saud University.

Welcome to talk about 98-97-5, If you have any questions, you can contact Khan, MT; Chinnasamy, S; Cui, ZL; Irfan, M; Wei, DQ or send Email.. Quality Control of Pyrazine-2-carboxylic acid

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

An article Design, Synthesis, In Vitro Antimicrobial, Antioxidant Evaluation, and Molecular Docking Study of Novel Benzimidazole and Benzoxazole Derivatives WOS:000461906200018 published article about ONE-POT SYNTHESIS; 2-SUBSTITUTED BENZOTHIAZOLES; OXIDATIVE CYCLIZATION; CATALYST; EFFICIENT; 2-ARYLBENZOXAZOLES; BASES in [Kashid, Bharat B.; Ghanwat, Anil A.; Dongare, Balasaheb B.] Solapur Univ, Sch Chem Sci, Chem Res Lab, Solapur 413255, MS, India; [Khedkar, Vijay M.] Shri Vile Parle Kelavani Mandals Inst Pharm, Dept Pharmaceut Chem, Dhule 424001, MS, India; [Shaikh, Mubarak H.; Deshpande, Prathmesh P.; Wakchaure, Yogesh B.] Dr Babasaheb Ambedkar Marathwada Univ, Dept Chem, Aurangabad 431004, MS, India in 2019, Cited 52. HPLC of Formula: C5H4N2O2. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5

A series of novel 2-substituted benzimidazole and benzoxazole derivatives as a potential antimicrobial and antioxidant agent were synthesized via coupling of N-methyl-o-phenylenediamine or 2-amino-phenol with aromatic aldehyde and acid in the presence of polyphosphoric acid as an efficient catalyst as well as solvent by conventional method in short reaction times with excellent yield. The newly synthesized benzimidazole and benzoxazole derivatives were evaluated for antimicrobial and antioxidant activity and exhibited excellent to good activities compared to the standard drugs. Furthermore, the theoretical predictions based on molecular docking against microbial DNA gyrase could provide an insight into the plausible mechanism of action and establish a link between the observed antimicrobial activity and the binding affinity shedding light on specific thermodynamic (bonded and nonbonded) interactions governing the activity. Furthermore, the synthesized compounds were analyzed for absorption, distribution, metabolism, and excretion properties and exhibited potential properties to build up as good oral drug candidates.

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Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Authors Swiderski, G; Kalinowska, M; Jablonska-Trypuc, A; Wolejko, E; Wydro, U; Lyszczek, R; Rusinek, I; Lewandowski, W in ELSEVIER published article about in [Swiderski, Grzegorz; Kalinowska, Monika; Jablonska-Trypuc, Agata; Wolejko, Elzbieta; Wydro, Urszula; Lewandowski, Wlodzimierz] Bialystok Tech Univ, Dept Chem Biol & Biotechnol, Wiejska 45E St, PL-15351 Bialystok, Poland; [Lyszczek, Renata; Rusinek, Iwona] UMCS, Dept Gen & Coordinat Chem, MC Sklodowska Sq 2, PL-20031 Lublin, Poland in 2021, Cited 50. Recommanded Product: Pyrazine-2-carboxylic acid. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5

Diazinecarboxylic acids (pyridazine-3-carboxylic, pyridazine-4-carboxylic, pyrimidine-2-carboxylic, pyrimidine-4-carboxylic, pyrimidine-5-carboxylic and pyrazine-2-carboxylic acids) were characterized by means of spectroscopic (FT-Raman, FTIR, UV, (HNMR)-H-1, (CNMR)-C-13) and thermogravimetric analysis as well as antimicrobial and cytotoxic tests. The structures of diazinecarboxylic acids were calculated by the DFT method (B3LYP/6-311G(d, p). For the most stable conformers, the energy of HOMO and LUMO molecular orbitals, the geometric (HOMA, GEO, EN, I6) and magnetic (NICS) aromaticity indices, NBO electronic charge distribution, sEDA and pEDA indexes, Wiberg Bond Order, Wiberg Index and theoretical IR and NMR spectra have been calculated. The energies of protonating and deprotonating acids were also calculated. The effect of the nitrogen heteroatom position in the aromatic ring in relation to the position of the carboxyl group on the electronic charge distribution, thermal stability, antimicrobial and cytotoxicity activities of the examined acids was determined. Antimicrobial activity of tested acids against of Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosaand Candida albicanswas calculated based on MTT colorimetric assay (MCA). The cytotocic effect of diazynecarboxylic acids was examined in A375 melanoma cell line and DLD-1 cell line. A biplot analysis was performed in order to determine the correlations between selected parameters of the tested compounds and relative cell viability of E. coli, B. subtilis, P. aeruginosa, C. albicans, A375 and DLD-1 cell lines. Thermal behaviour of all investigated carboxylic acids was investigated using thermogravimetry (TG) and differential scanning calorimetry (DSC) techniques in flowing air atmosphere. All compounds are stable in room temperature. (C) 2021 Elsevier B.V. All rights reserved.

Recommanded Product: Pyrazine-2-carboxylic acid. Welcome to talk about 98-97-5, If you have any questions, you can contact Swiderski, G; Kalinowska, M; Jablonska-Trypuc, A; Wolejko, E; Wydro, U; Lyszczek, R; Rusinek, I; Lewandowski, W or send Email.

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

An article Pyrazinamide resistance and mutations in pncA among isolates of Mycobacterium tuberculosis from Khyber Pakhtunkhwa, Pakistan WOS:000458381700012 published article about DRUG-RESISTANCE; GENE; SUSCEPTIBILITY; PREVALENCE; RPSA in [Khan, Muhammad Tahir; Malik, Shaukat Iqbal] Capital Univ Sci & Technol, Dept Bioinformat & Biosci, Islamabad Expressway,Kahuta Rd,Zone 5, Islamabad, Pakistan; [Ali, Sajid] Quaid E Azam Univ Islamabad & Prov TB Reference, Dept Microbiol, Lab Hayatabad Med Complex, Peshawar, Pakistan; [Masood, Nayyer; Afzal, Muhammad Tanvir] Capital Univ Sci & Technol, Dept Comp Sci, Islamabad, Pakistan; [Nadeem, Tariq] Univ Punjab, Natl Ctr Excellence Mol Biol, Lahore, Pakistan; [Khan, Anwar Sheed] Khyber Med Univ, Inst Basic Med Sci, Peshawar, Pakistan; [Khan, Anwar Sheed] Prov TB Control Lab, Hayatabad Med Complex Peshawar, Peshawar, Pakistan in 2019, Cited 39. Product Details of 98-97-5. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5

BackgroundPyrazinamide (PZA) is an important component of first-line drugs because of its distinctive capability to kill subpopulations of persistent Mycobacterium tuberculosis (MTB). The prodrug (PZA) is converted to its active form, pyrazinoic acid (POA) by MTB pncA-encoded pyrazinamidase (PZase). Mutation in pncA is the most common and primary cause of PZA resistance. The aim of the present study was to explore the molecular characterization of PZA resistance in a Pashtun-dominated region of Khyber Pakhtunkhwa, Pakistan.MethodsWe performed drug susceptibility testing (DST) on 753 culture-positive isolates collected from the Provincial Tuberculosis Control Program Khyber Pakhtunkhwa using the BACTEC MGIT 960 PZA method. In addition, the pncA gene was sequenced in PZA-resistant isolates, and PZA susceptibility testing results were used to determine the sensitivity and specificity of pncA gene mutations.ResultsA total of 69 isolates were PZA resistant (14.8%). Mutations were investigated in 69 resistant, 26 susceptible and one H37Rv isolates by sequencing. Thirty-six different mutations were identified in PZA-resistant isolates, with fifteen mutations, including 194_203delCCTCGTCGTG and 317_318delTC, that have not been reported in TBDRM and GMTV Databases and previous studies. Mutations Lys96Thr and Ser179Gly were found in the maximum number of isolates (n=4 each). We did not detect mutations in sensitive isolates, except for the synonymous mutation 195C>T (Ser65Ser). The sensitivity and specificity of the pncA sequencing method were 79.31% (95% CI, 69.29 to 87.25%) and 86.67% (95% CI, 69.28 to 96.24%).ConclusionMutations in the pncA gene in circulating isolates of geographically distinct regions, especially in high-burden countries, should be investigated for better control and management of drug-resistant TB. Molecular methods for the investigation of PZA resistance are better than DST.

Welcome to talk about 98-97-5, If you have any questions, you can contact Khan, MT; Malik, SI; Ali, S; Masood, N; Nadeem, T; Khan, AS; Afzal, MT or send Email.. Product Details of 98-97-5

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Application In Synthesis of Pyrazine-2-carboxylic acid. In 2019 MOLECULES published article about STANDARD MOLAR ENTHALPY; STRUCTURE-PROPERTY RELATIONSHIPS; THERMODYNAMIC PROPERTIES; IONIC LIQUIDS; THERMOPHYSICAL PROPERTIES; TEMPERATURE-RANGE; GROUP ADDITIVITY; VAPOR-PRESSURES; THERMAL-ANALYSIS; COMPUTATIONAL THERMOCHEMISTRY in [Naef, Rudolf] Univ Basel, Dept Chem, CH-4003 Basel, Switzerland in 2019, Cited 287. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5.

A universally applicable method for the prediction of the isobaric heat capacities of the liquid and solid phase of molecules at 298.15 K is presented, derived from their true volume. The molecules’ true volume in A(3) is calculated on the basis of their geometry-optimized structure and the Van-der-Waals radii of their constituting atoms by means of a fast numerical algorithm. Good linear correlations of the true volume of a large number of compounds encompassing all classes and sizes with their experimental liquid and solid heat capacities over a large range have been found, although noticeably distorted by intermolecular hydrogen-bond effects. To account for these effects, the total amount of 1303 compounds with known experimental liquid heat capacities has been subdivided into three subsets consisting of 1102 hydroxy-group-free compounds, 164 monoalcohols/monoacids, and 36 polyalcohols/polyacids. The standard deviations for Cp(liq,298) were 20.7 J/mol/K for the OH-free compunds, 22.91 J/mol/K for the monoalcohols/monoacids and 16.03 J/mol/K for the polyols/polyacids. Analogously, 797 compounds with known solid heat capacities have been separated into a subset of 555 OH-free compounds, 123 monoalcohols/monoacids and 119 polyols/polyacids. The standard deviations for Cp(sol,298) were calculated to 23.14 J/mol/K for the first, 21.62 J/mol/K for the second, and 19.75 J/mol/K for the last subset. A discussion of structural and intermolecular effects influencing the heat capacities as well as of some special classes, in particular hydrocarbons, ionic liquids, siloxanes and metallocenes, has been given. In addition, the present method has successfully been extended to enable the prediction of the temperature dependence of the solid and liquid heat capacities in the range between 250 and 350 K.

Application In Synthesis of Pyrazine-2-carboxylic acid. Bye, fridends, I hope you can learn more about C5H4N2O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Authors Hassan, NW; Saudi, MN; Abdel-Ghany, YS; Ismail, A; Elzahhar, PA; Sriram, D; Nassra, R; Abdel-Aziz, MM; El-Hawash, SA in ACADEMIC PRESS INC ELSEVIER SCIENCE published article about MYCOBACTERIUM-TUBERCULOSIS; ANTIMYCOBACTERIAL ACTIVITY; ACID HYDRAZONES; DERIVATIVES; RESISTANCE; DOCKING; DRUGS; GRANULOCYTES; INHIBITORS; PREDICTION in [Hassan, Nayera W.; Saudi, Manal N.; Abdel-Ghany, Yasser S.; Ismail, Azza; Elzahhar, Perihan A.; El-Hawash, Soad A.] Alexandria Univ, Fac Pharm, Dept Pharmaceut Chem, Alexandria 21521, Egypt; [Sriram, Dharmarajan] Birla Inst Technol & Sci Pilani, Med Chem & Drug Discovery Res Lab, Pharm Grp, Hyderabad Campus, Jawahar Nagar 500078, Telangana, India; [Nassra, Rasha] Alexandria Univ, Fac Med, Dept Med Biochem, Alexandria, Egypt; [Abdel-Aziz, Marwa M.] Al Azhar Univ, Reg Ctr Mycol & Biotechnol, Cairo 11759, Egypt in 2020, Cited 84. Formula: C5H4N2O2. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5

TB continues to be a leading health threat despite the availability of powerful anti-TB drugs. We report herein the design and synthesis of various hybrid molecules comprising pyrazine scaffold and various formerly identified anti-mycobacterial moieties. Thirty-one compounds were screened in vitro for their activity against Mycobacterium tuberculosis H37Rv strain using MABA assay. The results revealed that six compounds (8a, 8b, 8c, 8d, 14b and 18) displayed significant activity against Mtb with MIC values <= 6.25 mu g/ml versus 6.25 mu g/ml for pyrazinamide. The most active compounds were then assessed for their in vitro cytotoxicity against PBMC normal cell line using MTT assay and showed SI > 200. Several in silico studies have been carried out for target fishing of the novel compounds such as shape-based similarity, pharmacophore mapping and inverse docking. Based on this multi-step target fishing study, we suggest that pantothenate synthetase could be the possible target responsible for the action of these compounds. The most active compounds were then successfully docked into the active site of pantothenate synthetase enzyme with favorable binding interactions. In addition, in silico prediction of physicochemical, ADMET and drug-like properties were also determined indicating that compounds 8b, 8c and 8d are promising candidates for the development of new anti-TB agents with enhanced activity and better safety profile.

Formula: C5H4N2O2. Bye, fridends, I hope you can learn more about C5H4N2O2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem

Recently I am researching about C-H; STEREOSPECIFIC SYNTHESIS; ELECTROPHILIC AMINATION; CATALYZED AMINATION; BONDS, Saw an article supported by the Robert A. Welch FoundationThe Welch Foundation [I-0011]; Dr. Ralph and Marian Falk Medical Research Trust Bank of America, N.A., Trustee; NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) – USA [R01HL139793]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Munnuri, S; Anugu, RR; Falck, JR. The CAS is 98-97-5. Through research, I have a further understanding and discovery of Pyrazine-2-carboxylic acid. HPLC of Formula: C5H4N2O2

Cu(II)-mediated direct NH2 and NH alkyl aryl aminations and olefin aziridinations are described. These room temperature, one-pot, environmentally friendly procedures replace costly Rh-2 catalysts and, in some instances, display important differences with comparable Rh-2- and Fe-supported reactions.

Welcome to talk about 98-97-5, If you have any questions, you can contact Munnuri, S; Anugu, RR; Falck, JR or send Email.. HPLC of Formula: C5H4N2O2

Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem