反应详情

A mixture of NAPHTHYRIDINONE 2 (1.0 eq), acid from step 3 (1.5 eq), Na2CO3 (3.5 eq; 2M in H2O), Pd(OAc)2 (0.05 eq.) and PPh3 (0.15 eq.) or PdCl2dppf (0.05 eq) in n-propanol-DMF (1:1, 0.1M) was stilled at 70° C. for 2 h. The mixture was cooled to it, quenched with AcOH and diluted with EtOAc. The combined organic extracts were washed with brine, dried over Na2SO4, filtered and concentrated. Flash chromatography (CH2Cl2:EtOAc, 60:40, 2% AcOH) afforded the title compound as a white solid.

1. temperatureThe mixture was cooled to it
2. customquenched with AcOH
3. additiondiluted with EtOAc
4. washThe combined organic extracts were washed with brine
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated