Acetic acid (2S,4aR,5S,8aR)-5-(2-{(1S,4aR,8aR)-6-[(E)-hydroxyimino]-2,5,5,8a-tetramethyl-1,4,4a,5,6,7,8,8a-octahydro-naphthalen-1-yl}-ethyl)-1,1,4a-trimethyl-6-methylene-decahydro-naphthalen-2-yl ester 在
对甲苯磺酰氯 作用下,
以
吡啶 为溶剂,
以29%的产率得到Acetic acid (2S,4aR,5S,8aR)-5-{2-[(1S,5S,6S)-6-(2-cyano-ethyl)-5-isopropenyl-2,6-dimethyl-cyclohex-2-enyl]-ethyl}-1,1,4a-trimethyl-6-methylene-decahydro-naphthalen-2-yl ester