摘要:
This Letter reports our efforts towards the optimization of our previously identified series of imidazole and triazole derivatives that lead to the discovery of a series of orally active Lp-PLA(2) inhibitors in C57 mice. These inhibitors are characterized by the presence of a diamine side chain in the molecules, such as 2c, 2f, and 4a. The introduction of the terminal-end amine succeeded in maintaining the in vitro activities at sub-nanomolar levels. The vivo activities could be greatly affected by variations in the two amines via modulating the metabolic stability and lipophilicity of the compounds. (C) 2013 Elsevier Ltd. All rights reserved.