3,4-二甲氧基苄基溴 、 [(1R,4R)-1,7,7-Trimethyl-bicyclo[2.2.1]hept-(2Z)-ylideneamino]-acetic acid (1S,2R,5S)-2-isopropyl-5-methyl-cyclohexyl ester 在
lithium diisopropyl amide 作用下,
生成 (1S,2R,5S)-2-isopropyl-5-methylcyclohexyl 3-(3,4-dimethoxyphenyl)-2-((Z)-((1R,4R)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ylidene)amino)propanoate 、
(1S,2R,5S)-2-isopropyl-5-methylcyclohexyl 3-(3,4-dimethoxyphenyl)-2-((Z)-((1R,4R)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ylidene)amino)propanoate