Structure–activity relationship and liver microsome stability studies of pyrrole necroptosis inhibitors
摘要:
Necroptosis is a regulated caspase-independent cell death pathway resulting in morphology reminiscent of passive nonregulated necrosis. Several diverse structure classes of necroptosis inhibitors have been reported to date, including a series of [1,2,3] thiadiazole benzylamide derivatives. However, initial evaluation of mouse liver microsome stability indicated that this series of compounds was rapidly degraded. A structure-activity relationship (SAR) study of the [1,2,3] thiadiazole benzylamide series revealed that increased mouse liver microsome stability and increased necroptosis inhibitory activity could be accomplished by replacement of the 4-cyclopropyl-[1,2,3] thiadiazole with a 5-cyano-1-methylpyrrole. In addition, the SAR and the cellular activity profiles, utilizing different cell types and necroptosis-inducing stimuli, of representative [1,2,3] thiadiazole and pyrrole derivatives were very similar suggesting that the two compound series inhibit necroptosis in the same manner. (C) 2008 Elsevier Ltd. All rights reserved.
accelerating effect to classical Rosenmund–vonBraun reaction, making the coupling of (hetero)aryl bromides with CuCN occur at 100–120 °C with good to excellent yields in most cases. A large number of functional groups and heterocycles were tolerated under these conditions, thereby providing a convenient and reliable approach for diverse synthesis of aryl nitriles.
Mild Palladium-Catalyzed Cyanation of (Hetero)aryl Halides and Triflates in Aqueous Media
作者:Daniel T. Cohen、Stephen L. Buchwald
DOI:10.1021/ol5032359
日期:2015.1.16
A mild, efficient, and low-temperature palladium-catalyzed cyanation of (hetero)aryl halides and triflates is reported. Previous palladium-catalyzed cyanations of (hetero)aryl halides have required higher temperatures to achieve good catalytic activity. This current reaction allows the cyanation of a general scope of (hetero)aryl halides and triflates at 2–5 mol % catalyst loadings with temperatures
Structure–activity relationship and liver microsome stability studies of pyrrole necroptosis inhibitors
作者:Xin Teng、Heather Keys、Junying Yuan、Alexei Degterev、Gregory D. Cuny
DOI:10.1016/j.bmcl.2008.04.048
日期:2008.6
Necroptosis is a regulated caspase-independent cell death pathway resulting in morphology reminiscent of passive nonregulated necrosis. Several diverse structure classes of necroptosis inhibitors have been reported to date, including a series of [1,2,3] thiadiazole benzylamide derivatives. However, initial evaluation of mouse liver microsome stability indicated that this series of compounds was rapidly degraded. A structure-activity relationship (SAR) study of the [1,2,3] thiadiazole benzylamide series revealed that increased mouse liver microsome stability and increased necroptosis inhibitory activity could be accomplished by replacement of the 4-cyclopropyl-[1,2,3] thiadiazole with a 5-cyano-1-methylpyrrole. In addition, the SAR and the cellular activity profiles, utilizing different cell types and necroptosis-inducing stimuli, of representative [1,2,3] thiadiazole and pyrrole derivatives were very similar suggesting that the two compound series inhibit necroptosis in the same manner. (C) 2008 Elsevier Ltd. All rights reserved.