Potassium Phosphate, Tribasic → HCID 70664758, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-methyl-1H-indazol-5-ylboronic acid (180 mg, 1.02 mmol) in dioxane (3 mL) was added methyl 2-chloro-3-(isopropyl(methyl)amino)quinoxaline-6-carboxylate (Scheme I, 109 mg, 0.37 mmol), K3PO4 (175 mg, 0.83 mmol), Pd(PPh3)4 (29 mg, 0.03 mmol) and water (3 drops) with stirring for 1 h at 90° C. in an oil bath with an inert atmosphere of nitrogen. The reaction mixture was concentrated under vacuum and then purified by a silica gel column with 10% ethyl acetate in petroleum ether to afford methyl 3-(isopropyl(methyl)amino)-2-(1-methyl-1H-indazol-5-yl)quinoxaline-6-carboxylate as a light yellow solid (110 mg, 76%).

Provenance & Evidence