Amidinohydrazones as guanidine bioisosteres: Application to a new class ofpotent, selective and orally bioavailable, non-amide-based small-molecule thrombin inhibitors
Rm. Soll et al., Amidinohydrazones as guanidine bioisosteres: Application to a new class ofpotent, selective and orally bioavailable, non-amide-based small-molecule thrombin inhibitors, BIOORG MED, 10(1), 2000, pp. 1-4
We describe a new class of potent, non-amide-based small molecule thrombin
inhibitors in which an amidinohydrazone is used as a guanidine bioisostere
on a non-peptide scaffold. Compound 4 exhibits nM inhibition of thrombin, i
s selective for thrombin, and shows 60 and 23% bioavailability in rabbits a
nd dogs, respectively. Crystallographic analysis of 4 bound to thrombin con
firmed the amindinohydrazone binding mode. (C) 1999 Published by Elsevier S
cience Ltd. All rights reserved.