Water → (5,8-Difluoroquinazolin-4-yl)-{2-[3-methyl-4-(4-trifluoromethylpyridin-2-yloxy)-phenyl]-ethyl}-amine

HRID 2386903Notes

Reaction equation

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

Participants

Conditions

Temperature: 90 °C

Procedure

A mixture of 4-[2-(5,8-difluoroquinazolin-4-ylamino)-ethyl]-2-methylphenol (0.47 g, 1.5 mmol), 2-fluoro-4-trifluoromethylpyridine (0.371 g, 2.25 mmol), and potassium carbonate (0.31 g, 2.25 mmol) in DMSO (7 mL) was heated at 90° C. overnight. The reaction was complete, as determined by LC-MS. After cooling to room temperature, water was added and the mixture was stirred for 10 min. The solid precipitate was collected by filtration, washed with water, and dried under vacuum at 50° C. to provide 0.533 g (77%) of (5,8-difluoroquinazolin-4-yl)-{2-[3-methyl-4-(4-trifluoromethylpyridin-2-yloxy)-phenyl]-ethyl}-amine as an off-white solid, M.P. 108-110° C. 1H NMR (CDCl3): δ 8.69 (s, 1H), 8.31 (d, J=5.1 Hz, 1H), 7.34 (m, 1H), 7.13-7.21 (m, 4H), 6.96-7.03 (m, 2H), 6.71-6.84 (br, 1H), 3.94 (m, 2H), 3.02 (t, J=6.9 Hz, 2H), 2.17 (s, 3H). LC/MS: 461.13 (M++1).

Workup

temperatureAfter cooling to room temperature
filtrationThe solid precipitate was collected by filtration
washwashed with water
customdried under vacuum at 50° C.

Sources & evidence

ORD record: ord-ef164c25af2a4074a84180d330b6f933
Source dataset: uspto-grants-2012_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08268843B2

Reaction notes

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