Diisopropylethylamine → N-{2-chloro-5-fluoro-6-[(5-methyl-1H-pyrazol-3-yl)amino]pyrimidin-4-yl}-N-methylmethanesulfonamide

HRID 415433Notes

Reaction equation

[Cl:1][C:2]1[N:7]=[C:6]([N:8]([CH3:13])[S:9]([CH3:12])(=[O:11])=[O:10])[C:5]([F:14])=[C:4](Cl)[N:3]=1.[CH3:16][C:17]1[NH:21][N:20]=[C:19]([NH2:22])[CH:18]=1.CCN(C(C)C)C(C)C>CCCCO>[Cl:1][C:2]1[N:7]=[C:6]([N:8]([CH3:13])[S:9]([CH3:12])(=[O:11])=[O:10])[C:5]([F:14])=[C:4]([NH:22][C:19]2[CH:18]=[C:17]([CH3:16])[NH:21][N:20]=2)[N:3]=1

Participants

Conditions

Temperature: 50 °C

Procedure

To a solution of N-(2,6-dichloro-5-fluoropyrimidin-4-yl)-N-methylmethanesulfonamide (Method 31, 914 mg, 3.35 mmol) in n-BuOH (3 ml) was added 5-methyl-1H-pyrazol-3-amine (351 mg, 3.62 mmol, 97% purity) and DIPEA (1.2 ml, 6.9 mmol). The mixture was heated at 50° C. overnight. LC/MS showed the completion of the reaction. The solvent was evaporated and the residue was purified by silica gel chromatography (by ISCO Combiflash with gradient 0-5% methanol in DCM with 1% NH4OH) to afford the title compound as a light yellow solid (1.06 g, 95%). LC-MS, 335 (M+1). NMR (DMSO-d6, 400 MHz) δ12.27 (s, 1H), 10.53 (s, 1H), 6.32 (s, 1H), 3.27 (s, 3H), 3.20 (s, 3H), 2.25 (s, 3H).

Workup

customthe completion of the reaction
customThe solvent was evaporated
customthe residue was purified by silica gel chromatography (by ISCO Combiflash with gradient 0-5% methanol in DCM with 1% NH4OH)

Sources & evidence

ORD record: ord-f4dec7189bb04bbf88f0d922c070011a
Source dataset: uspto-grants-2012_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08088784B2

Reaction notes

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