3-[1-isopropyl-2-(2-methylpropenyl)-4-oxo-3,3-diphenylazetidin-2-yl]acrylic acid ethyl ester 以
5,5-dimethyl-1,3-cyclohexadiene 为溶剂,
反应 5.5h,
以93%的产率得到1-isopropyl-6-(2-methylpropenyl)-2-oxo-3,3-diphenyl-1,2,3,4-tetrahydropyridine-4-carboxylic acid ethyl ester