ethyl 10'-amino-11'-fluoro-2',3'-dihydro-9'-nitro-8'-oxospiro[cyclobutane-1,4'-[4H,8H]pyrido[1,2,3-ef][1,5]benzoxazepine]-7'-carboxylate 在
亚硝酸特丁酯 、 copper dichloride 作用下,
以
乙腈 为溶剂,
反应 20.0h,
以82%的产率得到ethyl 10'-chloro-11'-fluoro-2',3'-dihydro-9'-nitro-8'-oxospiro[cyclobutane-1,4'-[4H,8H]pyrido[1,2,3-ef][1,5]benzoxazepine]-7'-carboxylate