(1S,4R,6S)-6-(3-Iodo-1-methyl-1H-indol-2-yl)-8,8-dimethoxy-2-aza-bicyclo[2.2.2]octane-2,6-dicarboxylic acid 2-benzyl ester 6-methyl ester 、
丙烯酸甲酯(MA) 在
palladium diacetate 作用下,
以25%的产率得到(1S,4R,6S)-8,8-Dimethoxy-6-[3-((E)-2-methoxycarbonyl-vinyl)-1-methyl-1H-indol-2-yl]-2-aza-bicyclo[2.2.2]octane-2,6-dicarboxylic acid 2-benzyl ester 6-methyl ester