Kmentova, Iveta; Sutherland, Hamish S.; Palmer, Brian D.; Blaser, Adrian; Franzblau, Scott G.; Wan, Baojie; Wang, Yuehong; Ma, Zhenkun; Denny, William A.; Thompson, Andrew M. published the artcile< Synthesis and structure-activity relationships of aza- and diazabiphenyl analogues of the antitubercular drug (6S)-2-nitro-6-{[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine (PA-824)>, Related Products of 832735-54-3, the main research area is imidazooxazine aza diazabiphenyl analog preparation physicochem lipophilicity; microsomal stability pharmacokinetic property; tuberculosis antituberculosis structure activity; Suzuki Leibeskind Srogl cross coupling.
New heterocyclic analogs of the potent biphenyl class derived from antitubercular drug I were prepared, aiming to improve aqueous solubility but maintain high metabolic stability and efficacy. The strategy involved replacement of one or both Ph groups by pyridine, pyridazine, pyrazine, or pyrimidine, in order to reduce lipophilicity. For para-linked biaryls, hydrophilicities (ClogP) correlated with measured solubilities, but highly soluble bipyridine analogs displayed weak antitubercular activities. A terminal pyridine or proximal heterocycle allowed retention of potency and provided solubility improvements, particularly at low pH, with examples from the latter classes displaying the better in vivo efficacies, high metabolic stabilities, and excellent pharmacokinetics. Five such compounds were >100-fold better than the parent drug in a mouse model of acute Mycobacterium tuberculosis infection, and two orally bioavailable pyridine analogs (3-4-fold more soluble than the parent at low pH) were superior to antitubercular drug II in a chronic infection model.
Journal of Medicinal Chemistry published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 832735-54-3 belongs to class pyridine-derivatives, and the molecular formula is C18H22BNO3, Related Products of 832735-54-3.