Systematic variation of the so-called P-pocket moiety of benzamidrazon
e-based selective thrombin inhibitors led to the discovery of LB30057.
It is potent (Ki = 0.38 nM for human thrombin), selective (Ki = 3290
nM for bovine trypsin), and orally bioavailable (58% oral bioavailabil
ity in dogs). LB30057 was efficacious in thrombosis animal models. (C)
1998 Elsevier Science Ltd. All rights reserved.