反应详情

To a solution of 7-iodo-8-phenyl-1H-9-oxa-1,2-diaza-cyclopenta[a]naphthalen-6-one (100 mg, 0.26 mmol) in DMF (5 mL) was added sodium hydride (60% dispersion in oil, 30 mg, 0.77 mmol) and the reaction stirred at RT. After 5 min, iodomethane (0.06 mL, 0.90 mmol) was added and the reaction stirred at RT for 6 h. The reaction mixture was quenched by addition of water (3 mL) and extracted with EtOAc (×2). The combined organic extracts were washed with brine, dried (Na2SO4), filtered, and concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, gradient 0 to 100% EtOAc in cyclohexane) to afford the title compound (55 mg, 55%), LCMS (Method B): RT=3.87 min, [M+H]+=403. 7-iodo-2-methyl-8-phenyl-2H-9-oxa-1,2-diaza-cyclopenta[a]naphthalen-6-one was also isolated.

1. stirringthe reaction stirred at RT for 6 h
2. customThe reaction mixture was quenched by addition of water (3 mL)
3. extractionextracted with EtOAc (×2)
4. washThe combined organic extracts were washed with brine
5. dry with materialdried (Na2SO4)
6. filtrationfiltered
7. concentrationconcentrated in vacuo