Potassium Carbonate → N-[7-anilino-5-oxo-8-phenyl-4-(trifluoromethyl)-5,8-dihydro-1,8-naphthyridin-2-yl]methanesulfonamide

HRID 1839396Notes

Reaction equation

[NH:1]([C:8]1[N:9]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:10]2[C:15]([C:16](=[O:18])[CH:17]=1)=[C:14]([C:19]([F:22])([F:21])[F:20])[CH:13]=[C:12](Cl)[N:11]=2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:30][S:31]([NH2:34])(=[O:33])=[O:32].C([O-])([O-])=O.[K+].[K+]>CS(C)=O>[NH:1]([C:8]1[N:9]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:10]2[N:11]=[C:12]([NH:34][S:31]([CH3:30])(=[O:33])=[O:32])[CH:13]=[C:14]([C:19]([F:22])([F:21])[F:20])[C:15]=2[C:16](=[O:18])[CH:17]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 120 °C

Procedure

To a solution of 2-anilino-7-chloro-1-phenyl-5-(trifluoromethyl)-1,8-naphthyridin-4(1H)-one (100 mg, 0.241 mmol) in DMSO (5 mL) was added methyl sulfonamide and K2CO3 (76.5 mg, 0.554 mmol). The reaction was stirred at 120° C. for 24 h. The reaction was then cooled to room temperature, quenched with water and extracted with Et2O. The organic layers were dried over MgSO4, and concentrated in vacuo. The crude residue was then passed through a plug of silica gel eluting with 1:1 Hex:EtOAc to 9:1 CH2Cl2:MeOH to afford N-[7-anilino-5-oxo-8-phenyl-4-(trifluoromethyl)-5,8-dihydro-1,8-naphthyridin-2-yl]methanesulfonamide as a white solid (4.4 mg, 4%): LCMS RT: 2.45, MH+: 475.2.

Workup

temperatureThe reaction was then cooled to room temperature
customquenched with water
extractionextracted with Et2O
dry with materialThe organic layers were dried over MgSO4
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-b7339840489549ccb37c22d6c613344e
Source dataset: uspto-grants-2004_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06677352B1

Reaction notes

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