52059-62-8Relevant academic research and scientific papers
3H-1,2,4-Dithiazol-3-one compounds as novel potential affordable antitubercular agents
Yang, Jianzhong,Pi, Weiyi,Xiong, Li,Ang, Wei,Yang, Tao,He, Jun,Liu, Yuanyuan,Chang, Ying,Ye, Weiwei,Wang, Zhenling,Luo, Youfu,Wei, Yuquan
, p. 1424 - 1427 (2013/03/14)
Small molecules with oxathiazol-2-one moiety were recently reported as potent inhibitors of Mycobacterium bovis var. bacilli Calmette-Guérin (BCG), among which HT1171 was the most potent and selective proteasome inhibitor. Herein we synthesized a series of novel compounds by bioisosteric replacement of the oxathiazol-2-one ring with 3H-1,2,4-dithiazol-3-one, and also fifteen 1,3,4-oxathiazol-2-one molecules in order for potency comparison and structure-activity relationship elucidation since their antibacterial effects on the virulent strains were not evaluated before. All the compounds were assessed for antitubercular activities on the virulent H37Rv strain by a serial dilution method. Among the tested compounds, 3H-1,2,4-dithiazol-3-one compound 4n was found to be the most active with a lowest MIC90 value of 1 μg/mL. Furthermore, the cytotoxicities of all the compounds against normal human liver cell line L02 were determined by an MTT method. Compound 4n displayed a lower inhibitory ratio than HT1171 at the concentration of 100 μM, indicating its better safety profile.
IMINATION OF SULFUR-CONTAINING COMPOUNDS. XXIII. EFFECT OF THE ACIDIC CHARACTERISTICS OF N-SUBSTITUTED SULFENAMIDES ON THEIR ABILITY TO BE IMINATED BY THE SODIOCHLOROAMIDES OF SULFONIC ACIDS
Koval', I. V.,Oleinik, T. G.,Tarasenko, A. I.,Kremlev, M. M.
, p. 2358 - 2365 (2007/10/02)
The ability of N-substituted sulfenamides to be iminated by the sodiochloroamides of sulfonic acids is due primarily to their acidity and to the type of solvent employed.N-Substituted sulfonamides with pKa > 11.0 are imidated by the sodiochloroamides of sulfonic acids in acetone.The imination of N-substituted sulfenamides with pKa 8-11 must be carried out in strongly basic solvents with high dielectric constants (an aqueous alkaline medium, pyridine, etc.); sulfenamides with pKa 8 are iminated by the sodiochloroamides of sulfonic acids in the form of the sulfenamide anion.
