[(1S,2R)-2-phenylcyclohexyl] 2-dimethoxyphosphorylacetate 、
(1R,5S,6S,7R)-3-oxo-6-(tert-butyldiphenylsilyloxymethyl)-7-hydroxybicyclo<3.3.0>octane 在
potassium tert-butylate 作用下,
以
四氢呋喃 、
甲苯 为溶剂,
反应 18.0h,
生成 [(3aR,4R,5S,6aR)-4-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hydroxy-hexahydro-pentalen-(2E)-ylidene]-acetic acid (1S,2R)-2-phenyl-cyclohexyl ester