2-[(2R,3R)-3-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-2-mercapto-4-oxo-azetidin-1-yl]-3-methyl-but-2-enoic acid methyl ester 反应 0.17h,
以60%的产率得到(2R,3S,4R)-4-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-2-isopropenyl-3-mercapto-5-oxo-pyrrolidine-2-carboxylic acid methyl ester