(2E,4E)-3-Methyl-5-[(S)-1-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-pyrrolidin-2-yl]-penta-2,4-dienoic acid ethyl ester 在
lithium hydroxide 作用下,
以
乙醇 为溶剂,
以82%的产率得到(2E,4E)-3-Methyl-5-[(S)-1-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-pyrrolidin-2-yl]-penta-2,4-dienoic acid