Synthesis and SAR study of new thiazole derivatives as vascular adhesion protein-1 (VAP-1) inhibitors for the treatment of diabetic macular edema
作者:Takayuki Inoue、Masataka Morita、Takashi Tojo、Kousei Yoshihara、Akira Nagashima、Ayako Moritomo、Mitsuru Ohkubo、Hiroshi Miyake
DOI:10.1016/j.bmc.2012.12.025
日期:2013.3
Vascular adhesion protein-1 (VAP-1), an amine oxidase that is also known as a semicarbazide-sensitive amine oxidase (SSAO), is present in particularly high levels in human plasma, and is considered a potential therapeutic target for various inflammatory diseases, including diabetes complications such as macular edema.In our VAP-1 inhibitor program, structural modifications following high-throughput screening (HTS) of our compound library resulted in the discovery that thiazole derivative 10, which includes a guanidine group, shows potent human VAP-1 inhibitory activity (IC50 of 230 nM; rat IC50 of 14 nM). Moreover, compound 10 exhibited significant inhibitory effects on ocular permeability in STZ-induced diabetic rats. (C) 2013 Elsevier Ltd. All rights reserved.