7-Chlor-1-cyclopropyl-6-nitro-1,4-dihydro-4-oxo-3-chinolincarbonsaeure 、
1,2,3,4,5,6,7,8-八氢-1-[(4-甲氧基苯基)甲基]异喹啉 以
二甲基亚砜 为溶剂,
以71%的产率得到1-cyclopropyl-1,4-dihydro-7-(1-(4-methoxybenzyl)-3,4,5,6,7,8-hexahydroisoquinolin-2(1H)-yl)-6-nitro-4-oxoquinoline-3-carboxylic acid