7-(4-(2-bromoacetyl) piperazin-1-yl)-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid 、
(E)-5-((naphthalene-1-yl)methylene)thiazolidine-2,4-dione 在
potassium hydroxide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 12.0h,
以55%的产率得到1-cyclopropyl-6-fluoro-7-[4-[2-[(5-{E})-5-(1-naphthylmethylene)-2,4-dioxo-thiazolidin-3-yl]acetyl]piperazin-1-yl]-4-oxoquinoline-3-carboxylic acid