Computed Properties of C5H4N2O2. Authors Alsayed, SSR; Lun, SC; Payne, A; Bishai, WR; Gunosewoyo, H in WILEY published article about in [Alsayed, Shahinda S. R.; Gunosewoyo, Hendra] Curtin Univ, Fac Hlth Sci, Sch Pharm & Biomed Sci, Perth, WA, Australia; [Lun, Shichun; Bishai, William R.] Johns Hopkins Sch Med, Dept Med, Ctr TB Res, Div Infect Dis, Baltimore, MD 21205 USA; [Payne, Alan] Curtin Univ, Sch Mol & Life Sci, Perth, WA, Australia; [Bishai, William R.] Howard Hughes Med Inst, Chevy Chase, MD USA in 2021, Cited 54. The Name is Pyrazine-2-carboxylic acid. Through research, I have a further understanding and discovery of 98-97-5
Several rationally designed isoniazid (INH), pyrazinamide (PZA) and ciprofloxacin (CPF) derivatives were conveniently synthesized and evaluated in vitro against H37Rv Mycobacterium tuberculosis (M. tb) strain. CPF derivative 16 displayed a modest activity (MIC = 16 mu g/ml) and was docked into the M. tb DNA gyrase. Isoniazid-pyrazinoic acid (INH-POA) hybrid 21a showed the highest potency in our study (MIC = 2 mu g/ml). It also retained its high activity against the other tested M. tb drug-sensitive strain (DS) V4207 (MIC = 4 mu g/ml) and demonstrated negligible cytotoxicity against Vero cells (IC50 >= 64 mu g/ml). Four tested drug-resistant (DR) M. tb strains were refractory to 21a, similar to INH, whilst being sensitive to CPF. Compound 21a was also inactive against two non-tuberculous mycobacterial (NTM) strains, suggesting its selective activity against M. tb. The noteworthy activity of 21a against DS strains and its low cytotoxicity highlights its potential to treat DS M. tb.
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Reference:
Patent; Chevron Research Company; US4732894; (1988); A;,
Pyrazine – Wikipedia,
Pyrazine | C4H4N2 – PubChem