Diisopropylethylamine → 4-amino-6-[[(1S)-1-[6-fluoro-1-(1-methylpyrazol-4-yl)benzimidazol-2-yl]ethyl]amino]pyrimidine-5-carbonitrile

HRID 243492Notes

Reaction equation

[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:9]=[C:8]([C@@H:10]([NH2:12])[CH3:11])[N:7]([C:13]3[CH:14]=[N:15][N:16]([CH3:18])[CH:17]=3)[C:6]=2[CH:19]=1.[NH2:20][C:21]1[C:26]([C:27]#[N:28])=[C:25](Cl)[N:24]=[CH:23][N:22]=1.CCN(C(C)C)C(C)C>CC(O)C>[NH2:20][C:21]1[C:26]([C:27]#[N:28])=[C:25]([NH:12][C@H:10]([C:8]2[N:7]([C:13]3[CH:14]=[N:15][N:16]([CH3:18])[CH:17]=3)[C:6]3[CH:19]=[C:2]([F:1])[CH:3]=[CH:4][C:5]=3[N:9]=2)[CH3:11])[N:24]=[CH:23][N:22]=1

Participants

Conditions

Temperature: 80 °C

Procedure

A mixture of (S)-1-[6-fluoro-1-(1-methyl-1H-pyrazol-4-yl)-1H-benzoimidazol-2-yl]-ethylamine, (0.055 g, 0.21 mmol), 4-amino-6-chloropyrimidine-5-carbonitrile (0.046 g, 0.30 mmol) and DIPEA (0.07 mL, 0.38 mmol) in IPA (1.5 mL) was stirred at 80° C. in a sealed tube for 16 h. After cooling, the reaction mixture was concentrated in vacuo and the residue purified by chromatography (SiO2, 0-10% (2M ammonia in methanol) in DCM) to give 418 as a white solid (0.060 g, 75%). LCMS (Method K): RT 2.94 min [M+H]+ 378.0. 1H NMR (DMSO-d6, 400 MHz): δ 8.12 (1H, s), 7.96 (1H, s), 7.70-7.60 (3H, m), 7.25 (2H, s), 7.09 (1H, m), 6.96 (1H, m), 5.46 (1H, m), 3.88 (3H, s), 1.51 (3H, d, J=6.85 Hz)

Workup

temperatureAfter cooling
concentrationthe reaction mixture was concentrated in vacuo
customthe residue purified by chromatography (SiO2, 0-10% (2M ammonia in methanol) in DCM)

Sources & evidence

ORD record: ord-6ada1b3afebf4ecbb9107b8bfced0f09
Source dataset: uspto-grants-2014_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08653089B2

Reaction notes

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