Attenuation of Mycobacterium species through direct and macrophage mediated pathway by unsymmetrical diaryl urea
摘要:
Tuberculosis is a major threat for mankind and the emergence of resistance strain of Mycobacterium tuberculosis (Mtb) against first line antibiotics makes it lethal for human civilization. In this study, we have synthesized different diaryl urea derivatives targeting the inhibition of mycolic acid biosynthesis. Among the 39 synthesized molecules, compounds 46, 57, 58 and 86 showed MIC values <= 10 mu g/ml against H37Rv and mc(2)6030 strains. The best molecule with a methyl at ortho position of the first aromatic ring and prenyl group at the meta position of the second aromatic ring showed the MIC value of 5.2 mu g/ml and mu g/ml against H37Rv and mc(2)6030 respectively, with mammalian cytotoxicity of 163.4 mu g/ml. The effective compounds showed selective inhibitory effect on mycolic acid (epoxy mycolate) biosynthesis in C-14-radiolabelled assay. At the same time these molecules also executed their potent immunomodulatory activity by up-regulation of IFN-gamma and IL-12 and down-regulation of IL-10. (C) 2016 Elsevier Masson SAS. All rights reserved.
The xanthine scaffold is known to be the forefather of a class of biological active molecules. Xanthine is a planar framework in which an aryl substituent linked in the 1 or 3 position is driven out of the xanthine plane because of the steric hindrance exerted by the two carbonyls. This work analyses the stereodynamics of some 1-aryl and 1,3-bisaryl-xanthines and describes the steric requirements needed
Catalytic addition reactions of amines, thiols, and diphenyl‐phosphine oxides to heterocumulenes using a bridging Sulfonylimido titanium(IV) complex
作者:Indrani Banerjee、Shweta Sagar、Christian Lorber、Tarun K. Panda
DOI:10.1002/zaac.202200188
日期:2022.9.27
using a p-tolylsulfonylimide-supported dinuclear titanium complex. All the reactions were achieved in excellent yield under mild conditions and within a short reaction time. The products were isolated and fully characterized by spectroscopic techniques. We also propose a mechanism involving the proton abstraction (of the E−H of anilines or thiophenols) in the first step. In the reaction mechanism, the
我们在此提出了一种有效的加氢元素化反应方法,例如使用对甲苯基磺酰亚胺负载的双核钛配合物对杂枯烯碳二亚胺、芳基异氰酸酯和异硫氰酸酯与苯胺或苯硫酚进行氢胺化、氢硫醇化和氢磷酸化。所有反应均在温和的条件下和较短的反应时间内以优异的收率实现。通过光谱技术分离和充分表征产物。我们还提出了一种在第一步中涉及质子提取(苯胺或苯硫酚的 E-H)的机制。在反应机理中,双核 Ti IV配合物的酰胺基团充当离去基团,而磺酰亚胺键不受影响。
[EN] USE OF DDX3X INHIBITORS FOR THE TREATMENT OF PNEUMOVIRUS INFECTIONS<br/>[FR] UTILISATION D'INHIBITEURS DE DDX3X POUR LE TRAITEMENT D'INFECTIONS À PNEUMOVIRUS
申请人:UNIV WARWICK
公开号:WO2015136292A9
公开(公告)日:2022-04-21
USE OF DDX3X INHIBITORS FOR THE TREATMENT OF PNEUMOVIRUS INFECTIONS