反应详情

To methyl 6-(4-fluorobenzyl)-4-hydroxy-5-oxo-5,6,7,8-tetrahydro-2,6-naphthyridine-1-carboxylate 2-oxide (0.178 g, 0.514 mmol) was added acetic anhydride (0.157 g, 1.542 mmol) and refluxed. After 1 hour, the reaction mixture was concentrated under vacuum, then sodium methoxide (30 wt. % in methanol, 0.083 g, 1.540 mmol) was added. After stirring at room temperature for 1 hour, the product mixture was concentrated under vacuum. The residue was purified by reverse phase HPLC eluting with 5%-95% acetonitrile (0.1% TFA) in H2O (0.1% TFA) to afford the title compound as a pale yellow solid.

1. temperaturerefluxed
2. concentrationthe reaction mixture was concentrated under vacuum
3. concentrationthe product mixture was concentrated under vacuum
4. customThe residue was purified by reverse phase HPLC
5. washeluting with 5%-95% acetonitrile (0.1% TFA) in H2O (0.1% TFA)