(2S)-4-[(2S)-9-[(2R,5S)-5-[(1S)-1-[[(1S)-1-[(2S,5R,6S)-5-[tert-butyl(dimethyl)silyl]oxy-6-decyloxan-2-yl]prop-2-enoxy]-di(propan-2-yl)silyl]oxyprop-2-enyl]oxolan-2-yl]-2-tri(propan-2-yl)silyloxynon-3-ynyl]-2-methyl-2H-furan-5-one 在
Grubbs catalyst first generation 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 34.0h,
以83%的产率得到(2S)-4-[(2S)-9-[(2R,5S)-5-[(4S,7S)-7-[(2S,5R,6S)-5-[tert-butyl(dimethyl)silyl]oxy-6-decyloxan-2-yl]-2,2-di(propan-2-yl)-4,7-dihydro-1,3,2-dioxasilepin-4-yl]oxolan-2-yl]-2-tri(propan-2-yl)silyloxynon-3-ynyl]-2-methyl-2H-furan-5-one