Potassium Carbonate → HCID 178504756, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 6-bromo-5-[(trans-4-hydroxycyclohexyl)amino]-3-{[3-(methylsulfonyl)phenyl]amino}pyrazine-2-carboxamide (Example 181) (50 mg), cyclopropylboronic acid (18 mg), tetrakistriphenylphosphine palladium (24 mg), potassium carbonate (71 mg), dioxane (2.5 mL) and water (0.5 mL) was stirred at 115° C. overnight. After cooling, the reaction liquid was partitioned using chloroform, saturated aqueous sodium hydrogen carbonate and saturated aqueous sodium chloride. After drying, the organic layer was concentrated, and the resulting residue was purified by silica gel column chromatography (eluent; chloroform:methanol:saturated aqueous ammonia=100:0:0 to 10:1:0.1). The resulting residue was solidified with ethyl acetate-hexane to give 6-cyclopropyl-5-[(trans-4-hydroxycyclohexyl)amino]-3-{[3-(methylsulfonyl)phenyl]amino}pyrazine-2-carboxamide (10 mg) as a yellow solid.

Provenance & Evidence