Dimethylformamide → 1-(6-Amino-3,5-difluoro-2-pyridyl)-8-bromo-6-fluoro-7-(3-hydroxyazetidin-1-yl)-4-oxo-quinoline-3-carboxylic acid

HRID 368479Notes

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.[OH:33][CH:34]1[CH2:37][NH:36][CH2:35]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:36]4[CH2:37][CH:34]([OH:33])[CH2:35]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: 85 °C

Procedure

To 270 mg of N,N-dimethylformamide were added 110 mg of 1-(6-amino-3,5-difluoropyridine-2-yl)-8-bromo-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid, 50 mg of 3-hydroxyazetidine hydrochloride, and 100 mg of N-methy-lpyrrolidine together with 3 drops of ethanol, and the mixture was stirred at 85° C. for 25 minutes. After adding 0.5 ml of ethanol, the solution was allowed to cool, and the precipitate was collected by filtration and washed with ethanol and diisopropylether successively to obtain 101 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-a9067bbafd194a24b7347034ffa71ac7
Source dataset: uspto-grants-2000_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06133284

Reaction notes

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