A conformational restriction approach to the development of dual inhibitors of acetylcholinesterase and serotonin transporter as potential agents for Alzheimer's disease
作者:Narihiro Toda、Keiko Tago、Shinji Marumoto、Kazuko Takami、Mayuko Ori、Naho Yamada、Kazuo Koyama、Shunji Naruto、Kazumi Abe、Reina Yamazaki、Takao Hara、Atsushi Aoyagi、Yasuyuki Abe、Tsugio Kaneko、Hiroshi Kogen
DOI:10.1016/s0968-0896(03)00452-8
日期:2003.10
Alzheimer's disease (AD) has been treated with acetylcholinesterase (AChE) inhibitors such as donepezil. However, the clinical usefulness of AChE inhibitors is limited mainly due to their adverse peripheral effects. Depression seen in AD patients has been treated with serotonin transporter (SERT) inhibitors. We considered that combining SERT and AChE inhibition could improve the clinical usefulness of AChE inhibitors. In a previous paper, we found a potential dual inhibitor, 1, of AChE (IC50 = 101 nM) and SERT (IC50 = 42 nM), but its AChE inhibition activity was less than donepezil (IC50 = 10 nM). Here, we report the conformationally restricted (R)-18a considerably enhanced inhibitory activity against AChE (IC50 14 nM) and SERT (IC50 = 6 nM). (C) 2003 Elsevier Ltd. All rights reserved.