Aminopyrazine → (S)-N2-[1-(4-fluorophenyl)ethyl]-N2-methyl-4-(1-methyl-1H-pyrazol-4-yl)-N6-(pyrazin-2-yl)pyridine-2,6-diamine

Participants

Reaction Conditions

Reaction Steps

60 mg of (S)-6-chloro-N-[1-(4-fluorophenyl)ethyl]-N-methyl-4-(1-methyl-1H-pyrazol-4-yl)pyridine-2-amine, 18 mg of 2-aminopyrazine, 16 mg of 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl, 24 mg of sodium t-butoxide and 9 mg of tris(dibenzylideneacetone)(chloroform)dipalladium were added in turn to 2 ml of degassed toluene, and the mixture was stirred at 100° C. for 1 hour under argon atmosphere. The reaction solution was purified by silica gel column chromatography to obtain 60 mg of (S)—N2-[1-(4-fluorophenyl)ethyl]-N2-methyl-4-(1-methyl-1H-pyrazol-4-yl)-N6-(pyrazin-2-yl)pyridine-2,6-diamine as pale yellow oil. Furthermore, the obtained compound was subjected to hydrochlorination using a conventional method to obtain 29 mg of the objective compound as pale yellow powder.

Provenance & Evidence