7-(2-tert-butoxycarbonyl-3S-methyl-octahydro-pyrrolo[1,2S-a]pyrazin-7-yl)-1-cyclopropyl-8-difluoromethoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid ethyl ester 在
盐酸 、
水 作用下,
反应 2.0h,
生成
1-cyclopropyl-8-difluoromethoxy-7-(3S-methyl-octahydro-pyrrolo[1,2S-a]pyrazin-7-yl)-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid