(2E,8E,10E)-12-Methyl-trideca-2,8,10-trienoic acid ethyl ester 生成 (1S,2S,4aR,8aR)-2-Isopropyl-1,2,4a,5,6,7,8,8a-octahydro-naphthalene-1-carboxylic acid ethyl ester 、 (1S,2R,4aS,8aR)-2-Isopropyl-1,2,4a,5,6,7,8,8a-octahydro-naphthalene-1-carboxylic acid ethyl ester