Methyl chloroformate → HCID 178502267, compound

Participants

Reaction Steps

N-(cis-4-Amino-cyclohexyl)-5-fluoro-2-(3-methylsulfanyl-phenoxy)-nicotinamide hydrochloride (150 mg, 0.364 mmol) was suspended in dichloromethane (2 ml) under nitrogen at room temperature and triethylamine (153 μl, 1.09 mmol) was added followed by methylchloroformate (31 μl, 0.4 mmol). The reaction was stirred at room temperature for 1.5 h and the mixture was quenched with sat. sodium bicarbonate solution (3 ml). The organic phase was separated and the aqueous phase was washed with dichloromethane (2×3 ml). The combined organic extracts were dried over MgSO4 and the solvent was removed under reduced pressure. The residue was purified by flash column chromatography on silica gel eluting with dichloromethane:methanol (98:2, by volume) and the product was triturated with diethylether (3 ml) to give (cis-4-{[5-Fluoro-2-(3-methylsulfanyl-phenoxy)-pyridine-3-carbonyl]-amino}-cyclohexyl)-carbamic acid methyl ester (64 mg) as a white solid.

Provenance & Evidence