(3S,4S,5R,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-3-methoxy-4,6-dimethyl-nonanal 、
methyl 4-(diethylphosphono)crotonate 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以82%的产率得到(2E,4E,7S,8S,9R,10S)-9-(tert-butyl-dimethyl-silanyloxy)-7-methoxy-8,10-dimethyl-trideca-2,4-dienoic acid methyl ester