Aminopyrazine → (S)-1-{2-[1-(4-Fluorophenyl)ethylamino]-6-(pyrazin-2-ylamino)pyrimidin-4-yl}-4-(hydroxymethyl)piperidin-4-ol

Participants

Reaction Conditions

Reaction Steps

100 mg of (S)-1-{6-chloro-2-[1-(4-fluorophenyl)ethylamino]pyrimidin-4-yl}-4-(hydroxymethyl)piperidin-4-ol, 32 mg of 2-aminopyrazine, 45 mg of 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl, 38 mg of sodium t-butoxide and 27 mg of tris(dibenzylideneacetone)(chloroform)palladium were added in turn to a degassed mixed solution of 3 ml of toluene and 2 ml of 1,4-dioxane, and the mixture was stirred at 100° C. for 1 hour 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 80 mg of the objective compound as brown powder.

Provenance & Evidence