1-ethyl-1,4-dihydro-6-fluoro-7-[4-(p-nitrobenzyl)-1-piperazinyl]-4-oxoquinoline-3-carboxylic acid 在
palladium-carbon 氢气 作用下,
以
溶剂黄146 为溶剂,
以1.4 g (64%)的产率得到1-ethyl-7-[(4-p-aminobenzyl)-1-piperazinyl]-1,4-dihydro-6-fluoro-4-oxo-quinoline-3-carboxylic acid hydrochloride