p-Toluenesulfonic acid monohydrate → 5-chloro-N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-(1-methylindol-3-yl)pyrimidin-2-amine

HRID 1842743Notes

Reaction equation

Cl[C:2]1[N:7]=[C:6]([C:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]([CH3:17])[CH:9]=2)[C:5]([Cl:18])=[CH:4][N:3]=1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1.[F:31][C:32]1[C:38]([N+:39]([O-:41])=[O:40])=[CH:37][C:35]([NH2:36])=[C:34]([O:42][CH3:43])[CH:33]=1>CC(O)CCC>[Cl:18][C:5]1[C:6]([C:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]([CH3:17])[CH:9]=2)=[N:7][C:2]([NH:36][C:35]2[CH:37]=[C:38]([N+:39]([O-:41])=[O:40])[C:32]([F:31])=[CH:33][C:34]=2[O:42][CH3:43])=[N:3][CH:4]=1

Participants

Conditions

Temperature: 125 °C

Procedure

A mixture of 3-(2,5-dichloropyrimidin-4-yl)-1-methylindole (Intermediate 88, 1281 mg, 4.60 mmol), p-toluene sulphonic acid monohydrate (964 mg, 5.07 mmol) and 4-fluoro-2-s methoxy-5-nitroaniline (Intermediate 23, 900 mg, 4.84 mmol) in 2-pentanol (50 mL) was heated at 125° C. for 18 h. A precipitate formed from the solution upon cooling. The precipitate was collected by filtration, washed with CH3OH (10 mL) and diethyl ether (20 mL) and dried on the filter to give the title compound (1.42 g, 72%) as a tan solid, which was used without further purification; 1H NMR: 3.91 (3H, s), 3.96 (3H, s), 7.05 (1H, t), 7.23-7.3 (1H, m), 7.39 (1H, d), 7.53 (1H, d), 8.33 (1H, d), 8.47 (1H, s), 8.58 (1H, s), 8.65 (1H, d), 8.76 (1H, s); m/z: ES+ MH+ 428.10.

Workup

customA precipitate formed from the solution
temperatureupon cooling
filtrationThe precipitate was collected by filtration
washwashed with CH3OH (10 mL) and diethyl ether (20 mL)
customdried on the
filtrationfilter

Sources & evidence

ORD record: ord-7c385ee35133423b8d49db771377d6cb
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08946235B2

Reaction notes

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