Synthesis of 5-chloropyrrole carboxaldehydes from 5-oxopyrrolidine carboxamides
摘要:
N-alkyl-5-chloropyrrole-2(or 3)-carboxaldehydes are obtained by treatment of N-alkyl-5-oxopyrrolidine-2 (or 3)-carboxamides by phosphorus oxychloride and basic hydrolysis. (C) 1997 Elsevier Science Ltd.
Discovery of an orally efficaceous 4-phenoxypyrrolidine-based BACE-1 inhibitor
摘要:
Based on a lead compound identified from the patent literature, we developed patentably novel BACE-1 inhibitors by introducing a cyclic amine scaffold as embodied by la and 1b. Extensive SAR studies assessed a variety of isophthalamide replacements including substituted pyrrolidinones and ultimately led to the identification of 11. Due to its favorable overall profile, 11 has been extensively profiled in various in vivo settings. (c) 2007 Elsevier Ltd. All rights reserved.
Based on a lead compound identified from the patent literature, we developed patentably novel BACE-1 inhibitors by introducing a cyclic amine scaffold as embodied by la and 1b. Extensive SAR studies assessed a variety of isophthalamide replacements including substituted pyrrolidinones and ultimately led to the identification of 11. Due to its favorable overall profile, 11 has been extensively profiled in various in vivo settings. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis of 5-chloropyrrole carboxaldehydes from 5-oxopyrrolidine carboxamides
N-alkyl-5-chloropyrrole-2(or 3)-carboxaldehydes are obtained by treatment of N-alkyl-5-oxopyrrolidine-2 (or 3)-carboxamides by phosphorus oxychloride and basic hydrolysis. (C) 1997 Elsevier Science Ltd.