2-Diazo-N-(4-methoxy-phenyl)-N-[2-(4-nitro-phenyl)-ethyl]-malonamic acid (1R,2S,3S,4R)-4,7,7-trimethyl-3-naphthalen-1-yl-bicyclo[2.2.1]hept-2-yl ester 在
dirhodium tetraacetate 作用下,
以
二氯甲烷 为溶剂,
以76%的产率得到1-(4-Methoxy-phenyl)-4-(4-nitro-phenyl)-2-oxo-pyrrolidine-3-carboxylic acid (1R,2S,3S,4R)-4,7,7-trimethyl-3-naphthalen-1-yl-bicyclo[2.2.1]hept-2-yl ester