Beta-Alanine → 3-[(1-Benzyl-5-hydroxy-2-oxo-3-pyrimidin-5-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid

HRID 919923

反応式

HRID 919923 の反応式
CO[C:3]([C:5]1[C:6]([OH:29])=[C:7]2[C:12](=[CH:13][N:14]=1)[N:11]([CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:10](=[O:22])[C:9]([C:23]1[CH:24]=[N:25][CH:26]=[N:27][CH:28]=1)=[CH:8]2)=[O:4].[NH2:30][CH2:31][CH2:32][C:33]([OH:35])=[O:34].C[O-].[Na+]>>[CH2:15]([N:11]1[C:12]2[C:7](=[C:6]([OH:29])[C:5]([C:3]([NH:30][CH2:31][CH2:32][C:33]([OH:35])=[O:34])=[O:4])=[N:14][CH:13]=2)[CH:8]=[C:9]([C:23]2[CH:24]=[N:25][CH:26]=[N:27][CH:28]=2)[C:10]1=[O:22])[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1

参加物

4

反応物 3

HCID 239Beta-AlanineHCID 10942334Sodium MethoxideHCID 682976161-Benzyl-5-hydroxy-2-oxo-3-pyrimidin-5-yl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

生成物 1

HCID 682974063-[(1-Benzyl-5-hydroxy-2-oxo-3-pyrimidin-5-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid収率 65.9%

実験手順

A mixture of 1-benzyl-5-hydroxy-2-oxo-3-pyrimidin-5-yl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (58 mg, 0.15 mmol), β-alanine (706 mg, 7.9 mmol) and NaOMe solution (12 mL, 6.0 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 partitioned between EtOAc and water. 1 M HCl was added with vigorous stirring until pH was about 4. The organic layer was dried over MgSO4 and concentrated. The crude solid was dissolved in saturated NaHCO3 and washed several times with ether. The aqueous layer was acidified to pH about 4 with 6 M HCl, and the resulting precipitate was isolated by filtration to give 44 mg of the title compound. MS: (+) m/z 446.27 (M+1).

後処理

  1. temperaturewas refluxed for 16 h
  2. customthe solvent was evaporated in vacuo
  3. customThe residue was partitioned between EtOAc and water
  4. addition1 M HCl was added
  5. dry with materialThe organic layer was dried over MgSO4
  6. concentrationconcentrated
  7. dissolutionThe crude solid was dissolved in saturated NaHCO3
  8. washwashed several times with ether
  9. customthe resulting precipitate was isolated by filtration

出典と根拠

ORDレコード
ord-ad475b3191c7484dac97da4d7ea1c480
出典データセット
uspto-grants-2016_03
特許番号
US09271970B2

関連ノート

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