PROSTAGLANDIN E1 ANALOGUES

摘要

A prostaglandin E1 analogue represented by formula wherein R1 represents a hydrogen atom or a C1-C6 alkyl group; and X is an oxygen atom and R2 represents or , or X is a sulfur atom and R2 represents . The compound has a strong and prolonged inhibitory action for platelet aggregation and is useful for treatment of various thrombotic diseases including peripheral circulatory disturbance.