2-Aminoethanesulphonamide monohydrochloride → 7-Benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (2-sulfamoyl-ethyl)-amide

HRID 1410812ノート

反応式

HRID 1410812 の反応式
CO[C:3]([C:5]1[N:6]=[CH:7][C:8]2[C:9](=[O:23])[N:10]([CH2:16][C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH:11]=[CH:12][C:13]=2[C:14]=1[OH:15])=[O:4].Cl.[NH2:25][CH2:26][CH2:27][S:28]([NH2:31])(=[O:30])=[O:29].C[O-].[Na+]>CCO>[S:28]([CH2:27][CH2:26][NH:25][C:3]([C:5]1[N:6]=[CH:7][C:8]2[C:9](=[O:23])[N:10]([CH2:16][C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH:11]=[CH:12][C:13]=2[C:14]=1[OH:15])=[O:4])(=[O:30])(=[O:29])[NH2:31]

参加物

5

反応物 3

HCID 30215492-Aminoethanesulphonamide monohydrochlorideHCID 10942334Sodium MethoxideHCID 682977357-Benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methyl ester

生成物 1

HCID 601512647-Benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (2-sulfamoyl-ethyl)-amide収率 53.8%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

反応条件

温度
140 °C

実験手順

A mixture of 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methyl ester (30 mg, 0.097 mmol), 2-amino-ethanesulfonic acid amide HCl salt (24 mg, 0.19 mmol), and NaOMe (9.9 mg, 0.18 mmol) in EtOH (2 mL) was heated at 140° C. for 6 h in a microwave reactor. Solvent was evaporated in vacuo, and the residue was partitioned between 1 M HCl and EtOAc. The aqueous layer was extracted with additional EtOAc, and the organic layers were combined and dried over MgSO4. After evaporating the solvent, the crude product was purified by silica gel chromatography (0-10% MeOH/CH2Cl2) to give 21 mg of the title compound. MS: (+) m/z 403.25 (M+1).

後処理

  1. customSolvent was evaporated in vacuo
  2. customthe residue was partitioned between 1 M HCl and EtOAc
  3. extractionThe aqueous layer was extracted with additional EtOAc
  4. dry with materialdried over MgSO4
  5. customAfter evaporating the solvent
  6. customthe crude product was purified by silica gel chromatography (0-10% MeOH/CH2Cl2)

出典と根拠

ORDレコード
ord-4107b67fc18a402d8a81ffa6c170c453
出典データセット
uspto-grants-2014_12
特許番号
US08921389B2

反応ノート

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