Nickel-catalyzed Chan–Lam cross-coupling: chemoselective N-arylation of 2-aminobenzimidazoles
作者:K. Anil Kumar、Prakash Kannaboina、D. Nageswar Rao、Parthasarathi Das
DOI:10.1039/c6ob01307d
日期:——
A complementary set of Ni- and Cu-based catalyst systems for the selective N-arylation of 2-aminobenzimidazoles have been developed. Selective N-arylation of the primary amine (C-NH2) group was achieved by Ni-catalyzed, boronic acid promoted cross-coupling reactions in air, whereas, selective N-arylation of the azole nitrogen was achieved with Cu-catalysis and aryl halides. These protocols are general
Benzimidazoles as new potent and selective DP antagonists for the treatment of allergic rhinitis
作者:Christian Beaulieu、Zhaoyin Wang、Danielle Denis、Gillian Greig、Sonia Lamontagne、Gary O'Neill、Deborah Slipetz、Jennifer Wang
DOI:10.1016/j.bmcl.2004.04.005
日期:2004.6
A series of 2-substituted N-benzyl benzimidazole containing molecules has been synthesized and its structure-activity relationship for the human DP receptor has been evaluated. Selective DP antagonists with nanomolar potency for the DP receptor were identified in this novel series of benzimidazoles. (C) 2004 Elsevier Ltd. All rights reserved.