Potassium Carbonate → HCID 73332620, compound

Participants

Reaction Steps

9-chloro-1-(3-(trifluoromethyl)phenyl)pyrimidino[5,4-c][1,5]naphthyridine-2,4(1H,3H)-dione (400 mg, 1 mmol), 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (440 mg, 2.0 mmol), potassium carbonate (414 mg, 3.0 mmol) and tetrakis(triphenylphosphine)palladium(58 mg, 0.05 mmol) were added to 40 mL dioxane and 2 mL water. The resulting mixture was reacted under reflux in the nitrogen protection for 18 hrs, cooled to room temperature, filtered with Celite, concentrated, and separated by silicagel column chromatography (EtOAc/PE=0-10/1) to obtain a crude product, which was washed with methanol to obtain a yellow solid of 9-(6-aminopyridin-3-yl)-1-(3-(trifluoromethyl)phenyl)pyrimidino[5,4-c][1,5]naphthyridine-2,4(1H,3H)-dione (56 mg).

Provenance & Evidence