Potassium Phosphate, Tribasic → HCID 59216381, compound

Participants

Reaction Conditions

Reaction Steps

3-Amino-5-bromo-1-methyl-1H-pyridin-2-one (392 mg, 1.93 mmol) was placed into 13 ml n-butanol. To this mixture under argon was added: Pddba2 (55.2 mg, 0.096 mmol), XPhos (91.2 mg, 0.191 mmol), acetic acid 2-(6-dimethylamino-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl)-6-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzyl ester (900 mg, 1.93 mmol), potassium phosphate (814 mg, 3.84 mmol) and 4 ml water. The mixture was heated under argon in a sealed flask for 45 minutes at 100-110° C. After cooling, the mixture was diluted with ethylacetate, washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromathography using 5% methanol in dichloromethylene to afford 450 mg of Acetic acid 2-(5-amino-1-methyl-6-oxo-1,6-dihydro-pyridin-3-yl)-6-(6-dimethylamino-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl)-benzyl ester (49% yield).

Provenance & Evidence