(3S,4S)-3-(4-Methoxy-benzyloxy)-4-methyl-hex-5-enoic acid 在
Grubbs catalyst first generation 4-二甲氨基吡啶 、
N,N'-二环己基碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
反应 28.0h,
生成 (Z)-(4S,5S,8R)-8-[(R)-2-(tert-Butyl-diphenyl-silanyloxy)-1-methyl-ethyl]-4-(4-methoxy-benzyloxy)-5-methyl-3,4,5,8-tetrahydro-oxocin-2-one