3R,1R-1-cyclopropyl-6-fluoro-7-[3-(1-N-tertbutoxycarbonyl-N-methylaminoethyl)-1-pyrrolidinyl]-8-trifluoromethyl-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid 在
盐酸 作用下,
以
乙醇 为溶剂,
生成 1-Cyclopropyl-6-fluoro-7-[(R)-3-((R)-1-methylamino-ethyl)-pyrrolidin-1-yl]-4-oxo-8-trifluoromethyl-1,4-dihydro-quinoline-3-carboxylic acid; hydrochloride