Potassium Carbonate → 3-[2-{[3-(Diethylamino)propyl)amino}-8-(2,6-difluorophenyl)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]benzoic acid

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Reaction Conditions

Reaction Steps

To the compound 4-chloro-2-{[3-(diethylamino)propyl]amino}-8-(2,6-difluorophenyl)pyrido[2,3-d]pyrimidin-7(8H)-one (210.5 mg, 0.50 mmol) in dioxane (15 mL) and water (5 mL) were added 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic acid (125 mg, 0.75 mol), potassium carbonate (210 mg, 1.20 mmol) and tetrakis(triphenylphosphine)palladium(0) (29 mg, 0.025 mmol). The mixture was heated with microwave at 150° C. for 15 min. The mixture was concentrated, then mixed with DMSO (0.75 mL) and water (0.25 mL). Separation by HPLC afforded the title compound (467 mg, 32%). LC-MS m/z 508 (M+H)+.

Provenance & Evidence