Studies on 2-oxoquinoline derivatives as blood platelet aggregation inhibitors. I. Alkyl 4-(2-oxo-1,2,3,4-tetrahydro-6-quinolyloxy)butyrates and related compounds.

Many alkyl 4-(2-oxo-1, 2, 3, 4-tetrahydro-6-quinolyloxy) butyrates and related compounds were synthesized and tested for inhibitory activity against blood platelet aggregation in vitro. Among them, ethyl 4-(2-oxo-1, 2, 3, 4-tetrahydro-6-quinolyloxy) butyrate was found to have the most potent inhibitory activity. The structure-activity relationships are discussed.