(+)-(3aS,4R,7aS)-4-hydroxy-4-(m-tolylethynyl)-octahydro-indole-1-carboxylic acid methyl ester 、
2-carbomethoxypropionate 以to yield (3aR,4S,7aR)-1-(methoxycarbonyl)-4-(m-tolylethynyl)octahydro-1H-indol-4-yl methyl succinate的产率得到(3aR,4S,7aR)-1-(methoxycarbonyl)-4-(m-tolylethynyl)octahydro-1H-indol-4-yl methyl succinate