(E)-1-iodo-4-(m-trifluoromethylphenoxy)-3(R)-tert-butyldimethylsilyloxy-1-butene 、
(1S,2S,3S,5R,7R)-3-(tert-Butyl-dimethyl-silanyloxy)-tricyclo[3.2.0.02,7]heptan-6-one 在
(1S,2S,3S,5R,7R)-3-(tert-Butyl-dimethyl-silanyloxy)-tricyclo[3.2.0.02,7]heptan-6-one 作用下,
以64的产率得到(1R,4R,5S,7R)-5-{[tert-Butyl(dimethyl)silyl]oxy}-7-{(3R)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-[3-(trifluoromethyl)phenoxy]but-1-en-1-yl}bicyclo[2.2.1]heptan-2-one