反应详情

A mixture of 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic acid (200 mg), 3-aminomethylpyrrolidine (80 mg), DBU (110 mg) and anhydorous acetonitrile (3 ml) was refluxed for 2.5 hours. After cooling, the resulting precipitate was collected by filtration and recrystallized from a solution of dichloromethane-methanol (1:1) to give the title compound (90 mg) as white powdery crystals, mp 198°-200° C.

1. temperaturewas refluxed for 2.5 hours
2. temperatureAfter cooling
3. filtrationthe resulting precipitate was collected by filtration
4. customrecrystallized from a solution of dichloromethane-methanol (1:1)