反应详情

温度

100 °C

A mixture of 5-amino-1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxylic acid (400 mg, 1.44 mmol), N,N′-dimethyl-N-(2-pyridyl)-1,2-ethanediamine (355 mg, 2.15 mmol) and triethylamine (0.300 mL, 2.15 mmol) in anhydrous DMSO (6 mL) was stirred at 100° C. for 3 h. Triethylamine (0.300 mL, 2.15 mmol) was added and the mixture was stirred at 100° C. for 3 h. After cooling, the reaction mixture was poured into ice-water (50 mL). The resulting precipitate was collected by filtration, washed with water and dried to give 5-Amino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[methyl[2-[methyl(2-pyridyl)amino]ethyl]amino]-4-oxoquinoline-3-carboxylic acid (480 mg, 73%) as a brown solid.

1. stirringthe mixture was stirred at 100° C. for 3 h
2. temperatureAfter cooling
3. filtrationThe resulting precipitate was collected by filtration
4. washwashed with water
5. customdried