3-Phenyl-2-azabicyclo<2.2.2>oct-5-en-2-carbonsaeure-ethylester 在
溴 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
生成
(1S,5S,7S,8R)-8-Bromo-7-phenyl-6-aza-bicyclo[3.2.1]oct-3-ene-6-carboxylic acid ethyl ester 、 (1R,5R,7S,8S)-8-Bromo-7-phenyl-6-aza-bicyclo[3.2.1]oct-3-ene-6-carboxylic acid ethyl ester 、 (1S,4R)-6-Bromo-3-phenyl-2-aza-bicyclo[2.2.2]oct-5-ene-2-carboxylic acid ethyl ester