Dimethylformamide → 1-(6-Amino-3,5-difluoropyridin-2-yl)-8-bromo-6-fluoro-7-[3-(methylamino)azetidin-1-yl]-4-oxoquinoline-3-carboxylic acid

HRID 368438Notes

Reaction equation

CN(C)C=O.[NH2:6][C:7]1[N:12]=[C:11]([N:13]2[C:22]3[C:17](=[CH:18][C:19]([F:25])=[C:20](F)[C:21]=3[Br:23])[C:16](=[O:26])[C:15]([C:27]([OH:29])=[O:28])=[CH:14]2)[C:10]([F:30])=[CH:9][C:8]=1[F:31].Cl.Cl.[CH3:34][NH:35][CH:36]1[CH2:39][NH:38][CH2:37]1.CN1CCCC1>C(O)C>[NH2:6][C:7]1[N:12]=[C:11]([N:13]2[C:22]3[C:17](=[CH:18][C:19]([F:25])=[C:20]([N:38]4[CH2:39][CH:36]([NH:35][CH3:34])[CH2:37]4)[C:21]=3[Br:23])[C:16](=[O:26])[C:15]([C:27]([OH:29])=[O:28])=[CH:14]2)[C:10]([F:30])=[CH:9][C:8]=1[F:31]

Participants

Conditions

Temperature: 90 °C

Procedure

To 800 mg of N,N-dimethylformamide were added 260 mg of 1-(6-amino-3,5-difluoropyridine-2-yl)-8-bromo-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, 130 mg of 3-methylaminoazetidine dihydrochloride, and 300 mg of N-methylpyrrolidine, and the mixture was stirred at 90° 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 247 mg of the title compound as a pale yellow powder.

Workup

temperatureto cool
filtrationthe precipitate was collected by filtration
washwashed with ethanol and diisopropylether successively

Sources & evidence

ORD record: ord-092323976e404324a7fbb8d5231c1fbf
Source dataset: uspto-grants-2000_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06133284

Reaction notes

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