Chloroform → HCID 178504755, compound

Participants

Reaction Steps

To a mixture of 5-[(trans-4-hydroxycyclohexyl)amino]-3-{[3-(methylsulfonyl)phenyl]amino}pyrazine-2-carboxamide (Example 111) (150 mg), chloroform (40 mL) and acetonitrile (20 mL), N-bromosuccinimide (69 mg) was added and stirred at room temperature for 2 hours. To the reaction liquid, silica gel was added, and the solvent was distilled off, followed by purification by silica gel column chromatography (eluent; chloroform:methanol=10:0:0 to 10:1). The resulting crude product was solidified with ethyl acetate and washed with ethyl acetate to give 6-bromo-5-[(trans-4-hydroxycyclohexyl)amino]-3-{[3-(methylsulfonyl)phenyl]amino}pyrazine-2-carboxamide (130 mg) as a light yellow solid.

Provenance & Evidence