4-哌啶基哌啶 、 7-chloro-1-cyclopropyl-1,4-dihydro-8-methyl-6-nitro-4-oxoquinolone-3-carboxylic acid 在
potassium carbonate 作用下,
以
二甲基亚砜 为溶剂,
以80%的产率得到1-cyclopropyl-1,4-dihydro-8-methyl-6-nitro-7-(4-(piperidin-1-yl)piperidin-1-yl)-4-oxoquinoline-3-carboxylic acid