NOVEL CYCLOHEXENE DERIVATIVE AND PRODUCTION THEREOF.

摘要

A novel (1R, 2S)-1-acyl-2-carboxycyclohex-4-ene derivative represented by general formula (I), and a process for producing the same. In the said formula, R<1> represents hydrogen, lower alkyl or (un)substituted aryl; and R<2> represents hydrogen or lower alkyl. A process for producing a (3S, 4R)-4-substituted-3-carboxycyclopentanone derivative represented by general formula (A), wherein R<1> and R<2> are each as defined above.