(1S,4S,6S)-6-(3-Iodo-1-methyl-1H-indol-2-yl)-2-aza-bicyclo[2.2.2]oct-7-ene-2,6-dicarboxylic acid 2-benzyl ester 6-methyl ester 、
丙烯酸甲酯(MA) 在
palladium diacetate 作用下,
以55%的产率得到(1S,4S,6S)-6-[3-((E)-2-Methoxycarbonyl-vinyl)-1-methyl-1H-indol-2-yl]-2-aza-bicyclo[2.2.2]oct-7-ene-2,6-dicarboxylic acid 2-benzyl ester 6-methyl ester