Sodium Carbonate → (S)-2-amino-4-((1-(8-(5-methoxypyridin-3-yl)-1-oxo-2-phenyl-1,2-dihydroisoquinolin-3-yl)ethyl)amino)pyrimidine-5-carbonitrile

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To a mixture of (S)-2-amino-4-((1-(8-chloro-1-oxo-2-phenyl-1,2-dihydroisoquinolin-3-yl)ethyl)amino)pyrimidine-5-carbonitrile 8 (50 mg, 0.12 mmol) and (5-methoxypyridin-3-yl)boronic acid (37 mg, 0.24 mmol) in anhydrous 1,4-dioxane (4 mL), PdCl2(dppf) (9.8 mg, 0.012 mmol) and aqueous Na2CO3 solution (1 M, 0.6 mL, 0.6 mmol) were added and the resulting mixture was stirred at 120° C. for 3 h. The reaction mixture was allowed to cool to RT, quenched with water, and then extracted with ethyl acetate (3×50 mL). The combined organic layers were washed with brine, dried over Na2SO4 and filtered. The filtrate was concentrated in vacuo and the residue was purified by flash column chromatography on silica gel eluting with 0-10% MeOH-DCM to afford the product, (S)-2-amino-4-((1-(8-(5-methoxypyridin-3-yl)-1-oxo-2-phenyl-1,2-dihydroisoquinolin-3-yl)ethyl)amino)pyrimidine-5-carbonitrile 9. ESI-MS m/z: 490.2 [M+H]+. Compound 2-amino-4-((S)-1-(8-(5-methoxypyridin-3-yl)-1-oxo-2-phenyl-1,2-dihydroisoquinolin-3-yl)ethylamino)pyrimidine-5-carboxamide 10 was also formed in the above reaction and it was isolated by column chromatography. ESI-MS m/z: 508.2 [M+H]+.

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