Optimization of imidazole amide derivatives as cannabinoid-1 receptor antagonists for the treatment of obesity
摘要:
Several imidazole-based cyclohexyl amides were identified as potent CB-1 antagonists, but they exhibited poor oral exposure in rodents. Incorporation of a hydroxyl moiety on the cyclohexyl ring provided a dramatic improvement in oral exposure, together with a ca. 10-fold decrease in potency. Further optimization provided the imidazole 2-hydroxy-cyclohexyl amide 45, which exhibited hCB-1 K-i = 3.7 nM and caused significant appetite suppression and robust, dose-dependent reduction of body weight gain in industry-standard rat models. (c) 2007 Elsevier Ltd. All rights reserved.
Optimization of imidazole amide derivatives as cannabinoid-1 receptor antagonists for the treatment of obesity
摘要:
Several imidazole-based cyclohexyl amides were identified as potent CB-1 antagonists, but they exhibited poor oral exposure in rodents. Incorporation of a hydroxyl moiety on the cyclohexyl ring provided a dramatic improvement in oral exposure, together with a ca. 10-fold decrease in potency. Further optimization provided the imidazole 2-hydroxy-cyclohexyl amide 45, which exhibited hCB-1 K-i = 3.7 nM and caused significant appetite suppression and robust, dose-dependent reduction of body weight gain in industry-standard rat models. (c) 2007 Elsevier Ltd. All rights reserved.
Optimization of imidazole amide derivatives as cannabinoid-1 receptor antagonists for the treatment of obesity
作者:Roger A. Smith、Zahra Fathi、Furahi Achebe、Christiana Akuche、Su-Ellen Brown、Soongyu Choi、Jianmei Fan、Susan Jenkins、Harold C.E. Kluender、Anish Konkar、Rico Lavoie、Ronald Mays、Jennifer Natoli、Stephen J. O’Connor、Astrid A. Ortiz、Ning Su、Christy Taing、Susan Tomlinson、Theresa Tritto、Gan Wang、Stephan-Nicholas Wirtz、Wai Wong、Xiao-Fan Yang、Shihong Ying、Zhonghua Zhang
DOI:10.1016/j.bmcl.2007.03.011
日期:2007.5
Several imidazole-based cyclohexyl amides were identified as potent CB-1 antagonists, but they exhibited poor oral exposure in rodents. Incorporation of a hydroxyl moiety on the cyclohexyl ring provided a dramatic improvement in oral exposure, together with a ca. 10-fold decrease in potency. Further optimization provided the imidazole 2-hydroxy-cyclohexyl amide 45, which exhibited hCB-1 K-i = 3.7 nM and caused significant appetite suppression and robust, dose-dependent reduction of body weight gain in industry-standard rat models. (c) 2007 Elsevier Ltd. All rights reserved.