(2S,4S,6S,7S)-2-[tert-butyl(dimethyl)silyl]oxy-6-methoxy-8-[(4-methoxyphenyl)methoxy]-1-[4-[(E,1S)-1-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)but-3-enyl]-1,3-oxazol-2-yl]-3,3,7-trimethyloctan-4-ol 、 [(2S,4S,6S,7S)-2-[tert-butyl(dimethyl)silyl]oxy-6-methoxy-1-[4-[(1S)-1-methoxybut-3-enyl]-1,3-oxazol-2-yl]-8-[(4-methoxyphenyl)methoxy]-3,3,7-trimethyloctan-4-yl] (E,3S,5R)-3-[tert-butyl(dimethyl)silyl]oxy-7-iodo-5-methoxyhept-6-enoate 在
(1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、 barium hydroxide octahydrate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.25h,
以91%的产率得到[(2S,4S,6S,7S)-2-[tert-butyl(dimethyl)silyl]oxy-6-methoxy-1-[4-[(1S)-1-methoxybut-3-enyl]-1,3-oxazol-2-yl]-8-[(4-methoxyphenyl)methoxy]-3,3,7-trimethyloctan-4-yl] (3S,5R,6E,8E,11S)-3-[tert-butyl(dimethyl)silyl]oxy-11-[2-[(2S,4S,6S,7S)-2-[tert-butyl(dimethyl)silyl]oxy-4-hydroxy-6-methoxy-8-[(4-methoxyphenyl)methoxy]-3,3,7-trimethyloctyl]-1,3-oxazol-4-yl]-5,11-dimethoxyundeca-6,8-dienoate