Water → 2-Chloro-4-[[(1S,2R)-2-hydroxycyclohexyl]amino]-3-methyl-benzonitrile

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Reaction Steps

A solution of 2-chloro-4-fluoro-3-methyl-benzonitrile (500 mg, 2.95 mmol), (1R,2S)-2-aminocyclohexanol hydrochloride (671 mg, 4.42 mmol, Small Molecules, Inc.) and sodium bicarbonate (991 mg, 11.8 mmol) in DMSO (14.7 mL), and water (2.1 mL) is heated at 130° C. for 48 h. After cooling to room temperature, the mixture is diluted with 1 N HCl and extracted twice with EtOAc. The organic layers are combined, dried over sodium sulfate, filtered, and concentrated in vacuo. The resulting residue is purified using radial chromatography, eluting with 2% methanol/dichloromethane to furnish the title compound as an off-white solid (527 mg, 68%). LC-ES/MS m/z 265.2 (M+1).

Provenance & Evidence