Aminopyrazine → HCID 56599793, compound

Participants

Reaction Conditions

Reaction Steps

59 mg of (S)-6-chloro-N-[1-(4-fluorophenyl)ethyl]-4-(1-isopropyl-1H-pyrazol-4-yl)pyridine-2-amine, 19 mg of 2-aminopyrazine, 16 mg of 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl, mg of sodium t-butoxide and 9 mg of tris(dibenzylideneacetone)(chloroform)dipalladium were added in turn to 5 ml of degassed toluene, and the mixture was stirred at 85° C. for 1.5 hours under argon atmosphere. The reaction solution was diluted with ethyl acetate. The solution was washed in turn with water and brine and then dried over magnesium sulfate. The solvent was distilled off under reduced pressure, and then the obtained residue was purified by silica gel column chromatography to obtain 40 mg of (S)—N2-[1-(4-fluorophenyl)ethyl]-4-(1-isopropyl-1H-pyrazol-4-yl)-N6-(pyrazin-2-yl)pyridine-2,6-diamine as pale yellow powder. The obtained compound was subjected to hydrochlorination using a conventional method to obtain 30 mg of the objective compound as brown powder.

Provenance & Evidence