Dimethylformamide → 1-(6-amino-3,5-difluoropyridin-2-yl)-7-[(3S)-3-aminopyrrolidin-1-yl]-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

To 250 mg of N,N-dimethylformamide were added 60 mg of 1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid and 60 mg of (3S)-3-aminopyrrolidine, and the mixture was heated under reflux with stirring at 90° C. for 1 hour. After adding 1 ml of ethanol, the mixture was allowed to cool, and the precipitate was collected by filtration and washed with ethanol and diisopropylether successively to obtain 41 mg of the title compound as a pale brown powder.

Provenance & Evidence