Polyprenyl compound and pharmaceutical use

摘要

A novel polyprenyl compound is identified with the formula and useful for a pharmaceutical drag. <IMAGE> wherein X represents a group of the formula: <IMAGE> (wherein R1 and R2, which may be the same or differnt, represent each a hydrogen atom, a lower alkyl group, a hydroxyalkyl group, or a lower alkenyl group); a group of the formula: <IMAGE> (wherein A including the nitrogen atom shown represents a ring containing nitrogen and oxygen atoms); or a group of the formula: <IMAGE> (wherein R3 represents a hydrogen atom or a lower alkyl group, and R4 represents a lower alkyl group); Y represents a group of the formula: <IMAGE> or a group of the formula: <IMAGE> (wherein R5 represents a hydrogen atom or a lower alkyl group), and n represents an integer of from 2 to 5.