A dibenzoxepin derivative represented by the following general formula (I) wherein Y is a hydrogen atom and the like, RA is a hydrogen atom and the like, X is the formula (b3) wherein RB is a hydrogen atom and the like, and the like, A is the formula (a18) wherein R1 is a hydrogen atom and the like, and RC and RD are the same or different and each is a hydrogen atom and the like, and the like, which has a PPARγ agonist activity and the like, and useful as a therapeutic agent and/or prophylaxis agent and the like for type 2 diabetes and the like, or a pharmaceutically acceptable salt thereof and the like is provided.
Improved and ligand-free copper-catalyzed cyclization for an efficient synthesis of benzimidazoles from <i>o</i>-bromoarylamine and nitriles
作者:Emmanuel Mintah Bonku、Hongjian Qin、Abdullajon Odilov、Safomuddin Abduahadi、Samuel Desta Guma、Feipu Yang、Fuqiang Zhu、Haji A. Aisa、Jingshan Shen
DOI:10.1039/d4ra00245h
日期:——
improved copper-catalyzed cyclization for an efficient synthesis of benzimidazoles from o-bromoarylamine and nitriles, under mild and ligand-free conditions. The optimal conditions yielded exceptional products of up to 98%, demonstrating the broad applicability of this synthetic strategy in generating a wide range of valuable imidazole derivatives. This methodology enables the efficient synthesis of various