3-乙基吡啶 、
甲醇 、
alpha-氯丙烯酰氯 、
氯甲酸苄酯 在
sodium tetrahydroborate 、
对苯二酚 作用下,
生成
(+/-)-2-(benzyloxycarbonyl)-6-ethyl-7-exo-chloro-2-azabicyclo<2.2.2>oct-5-ene-7-endo-carboxylic acid methyl ester 、 (+/-)-2-(benzyloxycarbonyl)-6-ethyl-7-endo-chloro-2-azabicyclo<2.2.2>oct-5-ene-7-exo-carboxylic acid methyl ester 、
(+/-)-2-(benzyloxycarbonyl)-4-ethyl-7-exo-chloro-2-azabicyclo<2.2.2>oct-5-ene-7-endo-carboxylic acid methyl ester 、 (+/-)-2-(benzyloxycarbonyl)-4-ethyl-7-endo-chloro-2-azabicyclo<2.2.2>oct-5-ene-7-exo-carboxylic acid methyl ester