Toluene-4-sulfonic acid (1S,4R,5R,6S)-6-[2-(tert-butyl-diphenyl-silanyloxy)-ethyl]-4-methyl-5-trimethylsilanyloxy-cyclohept-2-enylmethyl ester 在
lithium aluminium tetrahydride 作用下,
以
乙醚 为溶剂,
反应 12.0h,
以80%的产率得到(3R,4R,5S,7S)-5-[2-(tert-Butyl-diphenyl-silanyloxy)-ethyl]-3,7-dimethyl-4-trimethylsilanyloxy-cycloheptene