3-({1-[1-(9H-fluoren-9-ylmethoxycarbonylamino)-3-methylbutyl]allyloxy}dimethylsilanyloxy)-2-isobutylpent-4-enethioic acid S-benzyl ester 在
ruthenium carbene complex 作用下,
以
甲苯 为溶剂,
反应 1.0h,
以83%的产率得到(S)-2-{(4S,7R)-7-[(R)-1-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-methyl-butyl]-2,2-dimethyl-4,7-dihydro-[1,3,2]dioxasilepin-4-yl}-4-methyl-pentanethioic acid S-benzyl ester