(2S,4R)-1-[(tert-butyldiphenylsilyl)oxy]-5-iodo-2,4-dimethylpentane 、
(2E,1'S,4R)-4-(methanesulfonyloxy)pent-2-enoic acid (1'-phenylethyl) amide 以235 mg的产率得到(2E,1'S,4S,6S,8S)-9-(tert-butyldiphenylsilyloxy)-4,6,8-trimethyl-N-(1'-phenylethyl)non-2-eneamide