(2E,7S,8E,10S,11S)-7-{[tert-butyl(dimethyl)silyl]oxy}-10-{[tert-butyl(diphenyl)silyl]oxy}-11-carbamoyloxypentadeca-2,8,14-trienoic acid 1'-(3''-iodo-2''-methylallyl)-4'-methoxycarbonyl-2'-methylpent-3'-enyl ester 在
palladium diacetate 、
caesium carbonate 、
三乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以81%的产率得到methyl (E,4R)-4-[(2R,4E,6E,10S,11S,12E,14S,18E)-14-[tert-butyl(dimethyl)silyl]oxy-11-[tert-butyl(diphenyl)silyl]oxy-10-carbamoyloxy-4-methyl-20-oxo-1-oxacycloicosa-4,6,12,18-tetraen-2-yl]-2-methylpent-2-enoate