Glycine → [(1-Benzyl-5-hydroxy-8-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid

反応式

CO[C:3]([C:5]1[C:6]([OH:30])=[C:7]2[C:12](=[C:13]([CH3:15])[N:14]=1)[N:11]([CH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)[C:10](=[O:23])[C:9]([C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1)=[CH:8]2)=[O:4].[NH2:31][CH2:32][C:33]([OH:35])=[O:34].C[O-].[Na+]>>[CH2:16]([N:11]1[C:12]2[C:7](=[C:6]([OH:30])[C:5]([C:3]([NH:31][CH2:32][C:33]([OH:35])=[O:34])=[O:4])=[N:14][C:13]=2[CH3:15])[CH:8]=[C:9]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:10]1=[O:23])[C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=1

参加物

反応物 3

HCID 750Glycine

HCID 10942334Sodium Methoxide

HCID 682976491-Benzyl-5-hydroxy-8-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

生成物 1

HCID 68297327[(1-Benzyl-5-hydroxy-8-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid収率 58.6%

実験手順

A mixture of 1-benzyl-5-hydroxy-8-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (58 mg, 0.15 mmol), glycine (2.61 g, 35 mmol) and NaOMe solution (52 mL, 26 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 with ether. The aqueous layer was acidified to pH 2 with 4 M HCl, and the resulting mixture was extracted with EtOAc. The organic layer was dried over MgSO4 and concentrated to give 39 mg of the title compound as a yellow solid. MS: (+) m/z 444.15 (M+1).