Non-covalent thrombin inhibitors featuring p 3 -heterocycles with P 1 -monocyclic arginine surrogates
摘要:
Investigations on P-2-P-3-heterocyclic dipeptide surrogates directed towards identification of an orally bioavailable thrombin inhibitor led us to pursue novel classes of achiral, non-covalent P-1-arginine derivatives. The design. synthesis. and biological activity of inhibitors NC1-NC30 that feature three classes of monocyclic P-1-arginine surrogates will be disclosed: (1) (hetero)aromatic amidines, amines and hydrox amidines, (2) 2-aminopyrazines. and (3) 2-aminopyrimidines and 2-aminotetrahydropyrimidines. (C) 2002 Elsevier Science Ltd. All rights reserved.
Non-covalent thrombin inhibitors featuring p 3 -heterocycles with P 1 -monocyclic arginine surrogates
摘要:
Investigations on P-2-P-3-heterocyclic dipeptide surrogates directed towards identification of an orally bioavailable thrombin inhibitor led us to pursue novel classes of achiral, non-covalent P-1-arginine derivatives. The design. synthesis. and biological activity of inhibitors NC1-NC30 that feature three classes of monocyclic P-1-arginine surrogates will be disclosed: (1) (hetero)aromatic amidines, amines and hydrox amidines, (2) 2-aminopyrazines. and (3) 2-aminopyrimidines and 2-aminotetrahydropyrimidines. (C) 2002 Elsevier Science Ltd. All rights reserved.
The present invention provides novel anticoagulant contrast agents, which comprise an organic scaffolding moiety, an organic anticoagulant moiety, and an imaging moiety. The invention also provides anticoagulant contrast media and methods of visualizing internal structures utilizing the novel anticoagulant contrast agents and anticoagulant contrast media.