Potassium Phosphate, Tribasic → 3-{4,4-Dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}-5-{1-methyl-5-[(2-methylpyrimidin-4-yl)amino]-6-oxo-1,6-dihydropyridin-3-yl}pyridine-4-carbaldehyde

Participants

Reaction Conditions

Reaction Steps

A sealed tube was charged with 3-bromo-5-{4,4-dimethyl-9-oxo-1,10-diazatricyclo-[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}-pyridine-4-carbaldehyde 107f (210 mg, 0.54 mmol), 1-methyl-3-(pyrimidin-4-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-one 213b (177 mg, 0.54 mmol), PdCl2(dppf) (42 mg, 0.050 mmol), K3PO4 (210 mg, 1.0 mmol), and sodium acetate (85 mg, 1.0 mmol), acetonitrile (8 mL), and water (0.5 mL). After three cycles of vacuum/argon flush, the mixture was heated at 100° C. for 4 h. It was then filtered and the filtrate was evaporated in vacuo. The residue was purified by silica-gel column chromatography eluting with 20:1 dichloromethane/methanol to afford 215a (150 mg, 53%). MS-ESI: [M+H]+ 524.2.

Provenance & Evidence