Beta-Alanine → HCID 68297421, compound

Participants

Reaction Steps

A mixture of 1-benzyl-5-hydroxy-3-(4-methoxy-phenyl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (30 mg, 0.072 mmol), β-alanine (854 mg, 9.6 mmol) and NaOMe solution (14.4 mL, 7.2 mmol, 0.5 M in MeOH) was refluxed for 16 h. After the mixture was cooled to r.t., the solvent was evaporated in vacuo. The residue was dissolved in saturated NaHCO3 and washed several times with ether. The aqueous layer was acidified to pH about 2 with 6 M HCl, and the resulting precipitate was isolated by filtration to give 25 mg of the title compound. MS: (+) m/z 474.30 (M+1).

Provenance & Evidence