Tetrahydrofuran → HCID 68297182, compound

Participants

Reaction Steps

A mixture of 4-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-butyric acid ethyl ester (38 mg, 0.078 mmol), 2M aq. NaOH (4 mL), THF (4 mL) and MeOH (4 mL) was stirred at r.t. for 16 h. Solvent was evaporated in vacuo to one-third of its original volume, and the mixture was placed in an ice bath. 1 M HCl was added until pH about 2, and the resulting precipitate was collected by filtration and dried to give 27 mg of the title compound as a pale yellow solid. MS: (+) m/z 458.36 (M+1).

Provenance & Evidence