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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 243492Generated: October 31, 2026

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

https://huagongshe.com/reaction/243492

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant4-Amino-6-chloropyrimidine-5-carbonitrileHCID 12278262—
Reactant(S)-1-[6-Fluoro-1-(1-methyl-1H-pyrazol-4-yl)-1H-benzoimidazol-2-yl]ethylamineHCID 68157529—
SolventIsopropanolHCID 3776—
Product4-amino-6-[[(1S)-1-[6-fluoro-1-(1-methylpyrazol-4-yl)benzimidazol-2-yl]ethyl]amino]pyrimidine-5-carbonitrileHCID 6815723175.7%

Reaction Conditions

Temperature80 °C

Reaction Steps

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)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653089B2
Source datasetuspto-grants-2014_02
ORD IDord-6ada1b3afebf4ecbb9107b8bfced0f09
Source noteuspto-grants-2014_02