(2E,7E,9E)-6-Ethyl-5-methyl-11-(toluene-4-sulfonyl)-undeca-2,7,9-trienoic acid ethyl ester 以
间二甲苯 为溶剂,
反应 32.0h,
以70%的产率得到(1S,2S,3aR,4S,5R,7aS)-1-Ethyl-2-methyl-5-(toluene-4-sulfonylmethyl)-2,3,3a,4,5,7a-hexahydro-1H-indene-4-carboxylic acid ethyl ester