Sodium Carbonate → 6-benzyl-4-methoxy-2-(5-methyl-1H-indazol-4-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

関与物質

反応条件

反応手順

A mixture of 6-benzyl-2-chloro-4-methoxy-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine (1.09 g, 3.75 mmol), (5-methyl-1H-indazol-4-yl)boronic acid (600 mg, 3.41 mmol), Pd(PPh3)4 (197 mg, 0.170 mmol), and Na2CO3 (2 M, 5.97 mL, 11.9 mmol) in DME (11 mL) was heated in a microwave reactor at 140° C. for 1.5 h. The reaction mixture was partitioned between EtOAc and water. The aqueous layer was extracted with EtOAc. The combined organics were washed with brine, dried (Na2SO4), and concentrated. The residue was purified by silica gel chromatography (20-100% EtOAc/heptane) to provide 6-benzyl-4-methoxy-2-(5-methyl-1H-indazol-4-yl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine. MS (ESI+) m/z 386.2 (M+H)+.

情報源と証拠