7,9-dichloro-2-(2,4-dimethylphenyl)-4-hydroxy-1,2,5,10-tetrahydropyridazino[4,5-b]quinoline-1,10-dione 在
sodium hydroxide 作用下,
以
甲醇 、
水 为溶剂,
以79%的产率得到7,9-Dichloro-2-(2,4-dimethylphenyl)-4-hydroxy-1,2,5,10-tetrahydropyridazino[4,5-b]quinoline-1,10-dione sodium salt