Polycyclic N-heterocyclic compounds. Part 66: Synthesis of N-[2-([1,2,4]oxadiazol-5-yl)cyclopenten-1-yl]formamide oximes and their evaluation as inhibitors of platelet aggregation

摘要

N-[2-([1,2,4]Oxadiazol-5-yl)cyclopenten-1-yl]formamide oximes were synthesized by fusion of (6,7-dihydro-5H-cyclopenta[1,2-d]pyrimidin-4-yl) amidines and/or their amide oximes with hydroxylamine hydrochloride through a subsequent rearrangement reaction. Assay of the products for anti-platelet aggregation activity revealed that certain of them showed promising inhibitory effect on arachidonic acid-induced platelet aggregation.