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

Participants

Role	Name	HCID	Charge
Reactant	Dimethylformamide	HCID 6228	—
Reactant	1-Methylpyrrolidine	HCID 8454	—
Reactant	1-(6-Amino-3,5-difluoro-2-pyridinyl)-8-chloro-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid	HCID 15434901	—
Reactant	N,N-dimethylazetidin-3-amine dihydrochloride	HCID 22121220	—
Solvent	Ethanol	HCID 702	—
Product	7-[3-(Dimethylamino)azetidin-1-yl]-1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid	HCID 22121252	72.1%

Reaction Conditions

Temperature	90 °C

Reaction Steps

To 310 mg of N,N-dimethylformamide were added 100 mg of 1-(6-amino-3,5-difluoropyridine-2-yl)-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, 100 mg of 3-(dimethylamino)azetidine dihydrochloride, and 150 mg of N-methylpyrrolidine, and the mixture was stirred at 90° C. for 15 minutes. 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 87 mg of the title compound as a colorless powder.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US06133284
Source dataset	uspto-grants-2000_10
ORD ID	ord-31a9e753dd7544fe951320f2c2f3aef6
Source note	uspto-grants-2000_10