Cyclic amino compounds represented by general formula (I) or pharmacologically acceptable salts thereof having an excellent antiplatelet aggregation effect; etc. and thus being useful as preventives or remedies for embolism, thrombosis or arterial sclerosis wherein R1 represents optionally substituted phenyl; R2 represents optionally substituted aliphatic acyl, optionally substituted benzoyl or alkoxycarbonyl; and R3 represents substituted and optionally ring-fused saturated cyclic amino.
A cyclic amino compound represented by the following formula:
or a pharmacologically acceptable salt thereof. R1 is a substitutable phenyl group. R2 is a substitutable aliphatic acyl group, a substitutable benzoyl group or an alkoxycarbonyl group. R3 is a substituted, saturated cyclic amino group which may optionally have a fused ring. These compounds and salts have excellent platelet aggregation inhibitory action. They are useful for the prevention and/or treatment of embolism, thrombosis or arteriosclerosis and other conditions resulting from platelet aggregation.