溴乙酸叔丁酯 、
tert-Butyl (5R,6S,7R,7aR)-6-{[(4S,5S)-2,2-Dimethyl-5-[(E)-pent-3-en-1-yl]-1,3-dioxolan-4-yl]methyl}-7-{2-[(4-methoxybenzyl)oxy]ethyl}-5-[(E)-oct-6-en-1-yl]-2-oxo-4,5,6,7-tetrahydro-2H-1-benzofuran-3-propanoate 在
双(三甲基硅烷基)氨基钾 作用下,
以
N,N-二甲基甲酰胺 、
甲苯 为溶剂,
反应 1.83h,
生成 tert-Butyl (3S,5R,6S,7R)-3-[(tert-butyloxycarboyl)methyl]-6-{[(4S,5S)-2,2-dimethyl-5-[(E)-pent-3-en-1-yl]-1,3-dioxolan-4-yl]methyl}-7-[2-(4-methoxybenzyloxy)ethyl]-5-[(E)-oct-6-en-1-yl]-2-oxo-2,3,4,5,6,7-hexahydro-1-benzofuran-3-propanoate 、 tert-Butyl (3R,5R,6S,7R)-3-[(tert-butyloxycarboyl)methyl]-6-{[(4S,5S)-2,2-dimethyl-5-[(E)-pent-3-en-1-yl]-1,3-dioxolan-4-yl]methyl}-7-[2-(4-methoxybenzyloxy)ethyl]-5-[(E)-oct-6-en-1-yl]-2-oxo-2,3,4,5,6,7-hexahydro-1-benzofuran-3-propanoate