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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 610184Generated: October 31, 2026

Dimethylformamide → 7-(3-Aminoazetidine-1-yl)-8-chloro-6-fluoro-1-(3,5-difluoro-6-methylaminopyridine-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

https://huagongshe.com/reaction/610184

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactant1-MethylpyrrolidineHCID 8454—
ReactantAzetidin-3-amine--hydrogen chloride (1/2)HCID 13491919—
Reactant8-Chloro-6,7-difluoro-1-(3,5-difluoro-6-methylaminopyridin-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acidHCID 15896298—
SolventEthanolHCID 702—
Product7-(3-Aminoazetidine-1-yl)-8-chloro-6-fluoro-1-(3,5-difluoro-6-methylaminopyridine-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acidHCID 2212122290.3%

Reaction Conditions

Temperature100 °C

Reaction Steps

To 400 mg of N,N-dimethylformamide were added 100 mg of 8-chloro-6,7-difluoro-1-(3,5-difluoro-6-methylaminopyridin-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, 60 mg of 3-aminoazetidine dihydrochloride, and 120 mg of N-methylpyrrolidine, and the mixture was stirred at 100° C. for 1 hour. After adding 0.5 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 102 mg of the title compound as a colorless powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05998436
Source datasetuspto-grants-1999_12
ORD IDord-43b8d352e8514f3fbfb6e9edc85ec609
Source noteuspto-grants-1999_12