反应详情

A mixture of 1.2 g (4.53 mmoles) of 1-cyclopropyl 6,7-difluoro-1,4-dihydro-4oxo-3-quinolinecarboxylic acid, 1.3 g (9.05 mmoles) of 3-aminoazetidine hydrochloride and 0.5 ml of triethylamine heated in 15 ml of pyridine for 2 hours. The mixture is filtrated and washed with water and ethanol to obtain 0.83 g (58%) of 1-cyclopropyl-6-fluoro-7-(3-amino-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid melting at 246°-7° C.

1. filtrationThe mixture is filtrated
2. washwashed with water and ethanol