Dimethyl Sulfoxide → 2-(2-(3-fluorophenoxy)ethylamino)-6-(5-methyl-1H-pyrazol-3-ylamino)-4-(pyridin-3-yl)nicotinonitrile dihydrochloride

HRID 2077086Notes

Reaction equation

[Cl:1][C:2]1[N:9]=[C:8]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[NH:13][N:12]=2)[CH:7]=[C:6]([C:17]2[CH:18]=[N:19][CH:20]=[CH:21][CH:22]=2)[C:3]=1[C:4]#[N:5].[ClH:23].[F:24][C:25]1[CH:26]=[C:27]([CH:32]=[CH:33][CH:34]=1)[O:28][CH2:29][CH2:30][NH2:31].C(=O)([O-])O.[Na+].CS(C)=O>O>[ClH:1].[ClH:23].[F:24][C:25]1[CH:26]=[C:27]([CH:32]=[CH:33][CH:34]=1)[O:28][CH2:29][CH2:30][NH:31][C:2]1[N:9]=[C:8]([NH:10][C:11]2[CH:15]=[C:14]([CH3:16])[NH:13][N:12]=2)[CH:7]=[C:6]([C:17]2[CH:18]=[N:19][CH:20]=[CH:21][CH:22]=2)[C:3]=1[C:4]#[N:5]

Participants

Conditions

Temperature: 130 °C

Procedure

Compound D (202 mg, 650 μmol), 2-(3-fluorophenoxy)ethylamine hydrochloride (357 mg) and sodium hydrogencarbonate (540 mg) were added to DMSO (3 ml), and the mixture was stirred at 130° C. for 24 hr. After stirring, the reaction mixture was added to cold water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and concentrated, and the residue was purified by silica gel chromatography (90 mg). This was converted to hydrochloride to give the object compound of 2-(2-(3-fluorophenoxy)ethylamino)-6-(5-methyl-1H-pyrazol-3-ylamino)-4-(pyridin-3-yl)nicotinonitrile dihydrochloride (22 mg).

Workup

stirringAfter stirring
extractionthe mixture was extracted with ethyl acetate
washThe organic layer was washed with saturated brine
concentrationconcentrated
customthe residue was purified by silica gel chromatography (90 mg)

Sources & evidence

ORD record: ord-c0abc3d2491041eda052761016c15023
Source dataset: uspto-grants-2011_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07928126B2

Reaction notes

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