反应详情

[1-(4-biphenylyl)-2-(4-morpholinyl)ethyl]methylamine (180 mg, 0.62 mmol) was added to a solution of (6,7-dimethyl-2-oxo-1(2H)-quinoxalinyl)acetic acid (120 mg, 0.52 mmol), (benzotriazol-1-yloxy) tris(dimethylamino) phosphonium-hexafluorophosphate (BOP) (270 mg, 0.62 mmol) and diisopropylethylamine (340 mg, 2.6 mmol) in dimethylformamide (DMF) (5 mL). The reaction mixture was stirred at room temperature for 3h, filtered and washed with DMF. The crude was purified by preparative HPLC (YMC CombiPrep ODS-A, 50×20 mm, 20 mL/min, A: acetonitrile B: water, A: 10 to 90% over 10 min, UV detection at 214 nm) to give the title compound (43 mg, 14% ), MS (ES) m/e 511 [M+H]+.

1. filtrationfiltered
2. washwashed with DMF
3. customThe crude was purified by preparative HPLC (YMC CombiPrep ODS-A, 50×20 mm, 20 mL/min