Water → 2-(2-Isopropoxy-3-methyl-benzoylamino)-5-methoxy-indan-2-carboxylic acid
反応式
C([O:3][C:4]([C:6]1([NH:17][C:18](=[O:30])[C:19]2[CH:24]=[CH:23][CH:22]=[C:21]([CH3:25])[C:20]=2[O:26][CH:27]([CH3:29])[CH3:28])[CH2:14][C:13]2[C:8](=[CH:9][CH:10]=[C:11]([O:15][CH3:16])[CH:12]=2)[CH2:7]1)=[O:5])C.[OH-].[K+].O>CCO>[CH:27]([O:26][C:20]1[C:21]([CH3:25])=[CH:22][CH:23]=[CH:24][C:19]=1[C:18]([NH:17][C:6]1([C:4]([OH:5])=[O:3])[CH2:14][C:13]2[C:8](=[CH:9][CH:10]=[C:11]([O:15][CH3:16])[CH:12]=2)[CH2:7]1)=[O:30])([CH3:29])[CH3:28]参加物
5
実験手順
The mixture of 2-(2-isopropoxy-3-methyl-benzoylamino)-5-methoxy-indan-2-carboxylic acid ethyl ester (92) (410 mg, 1 mmol) and KOH (1 g, 18 mmol) is dissolved in EtOH (8 mL) and water (1 mL) under a water bath. The water bath is removed when KOH is completely dissolved and the resulting reaction solution is stirred at RT for 8 h. After concentration in vacuo, the residue is dissolved in water (20 mL) and acidified with conc. HCl until no more white precipitate formed. The precipitate is filtered to give a pure product (93) as white solid (400 mg, 100%).
後処理
- customThe water bath is removed when KOH
- dissolutionis completely dissolved
- customthe resulting reaction solution
- concentrationAfter concentration in vacuo
- dissolutionthe residue is dissolved in water (20 mL)
- customformed
- filtrationThe precipitate is filtered
出典と根拠
- ORDレコード
- ord-be16d46fc7c0461a8c31d324aaaa9ef0
- 出典データセット
- uspto-grants-2013_10
- 特許番号
- US08569535B2
反応ノート
読み込み中…