2,2-Dimethyl-propionic acid (1aS,7bR)-3-bromo-4-[(S)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-1a,2,3,7b-tetrahydro-1-oxa-7-aza-cyclopropa[a]naphthalen-6-ylmethyl ester 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以86%的产率得到[(1aS,7bR)-4-[(1S)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-1a,7b-dihydrooxireno[2,3-h]quinolin-6-yl]methyl 2,2-dimethylpropanoate