Chloroform → HCID 178504757, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 5-[(trans-4-hydroxycyclohexyl)amino]-3-{[3-(methylsulfonyl)phenyl]amino}pyrazine-2-carboxamide (Example 111) (298 mg), chloroform (40 mL) and acetonitrile (10 mL), N-chlorosuccinimide (108 mg) was added and stirred at 70° C. for 8 hours. After the reaction liquid was cooled, silica gel was added, and the solvent was distilled off, followed by purification by silica gel column chromatography (eluent; chloroform:methanol=10:0 to 10:1). The resulting crude product was solidified from chloroform and collected by filtration. The resulting solid was heated with ethyl acetate and washed with ethyl acetate to give 6-chloro-5-[(trans-4-hydroxycyclohexyl)amino]-3-{[3-(methylsulfonyl)phenyl]amino}pyrazine-2-carboxamide (189 mg) as a white solid.

Provenance & Evidence