CYCLOPENTENONDERIVATE

摘要

A cyclopentenone derivative represented by the following formula ÄIÜ or an optically active substance or a salt thereof. (In the formula, R1 and R2 are same or different and each of them is straight or branched alkyl group, straight or branched alkenyl group, aromatic group, aromatic-aliphatic group or H with a proviso that the case where R1 = R2 = H, or R1 = benzyl group and R2 = H is excluded.)