(S)-9-fluoro-3-methyl-10-bromomethyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzooxaazine-6-carboxylic acid ethyl ester 、
环丙胺 以
乙腈 为溶剂,
生成 (2S)-6-[(cyclopropylamino)methyl]-7-fluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid