Dibasic benzo[b]thiophene derivatives as a novel class of active site directed thrombin inhibitors. 2. Exploring interactions at the proximal (S2) binding site
作者:Daniel J. Sall、Stephen L. Briggs、Nickolay Y. Chirgadze、David K. Clawson、Donetta S. Gifford-Moore、Valentine J. Klimkowski、Jefferson R. McCowan、Gerald F. Smith、James H. Wikel
DOI:10.1016/s0960-894x(98)00447-8
日期:1998.9
In an effort to increase the thrombin inhibitory activity of a novel series of inhibitors (i.e., 1a), substituents were incorporated at the C-3" position of the C-3 aryl ring (2). Consistent with the X-ray crystallography studies, small hydrophobic groups at the C-3" site (Br and Me) enhanced thrombin inhibitory activity by 8-fold. However, a few more hydrophilic substituents (NO2 and OMe) also enhanced the potency of the series. The biological results are discussed in terms of molecular modeling studies. (C) 1998 Elsevier Science Ltd. All rights reserved.