(1S,2R,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-2-{(E)-2-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-3-methyl-but-1-enyl}-cyclopentanol 以80%的产率得到(2S,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-2-{(E)-2-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-3-methyl-but-1-enyl}-cyclopentanone