Water → HCID 21186673、化合物
反応式
C([O:4][CH:5]1[C:11]2=[N:12][C:13]([CH3:21])=[C:14]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[CH:15]=[C:10]2[CH2:9][CH2:8][CH2:7][CH2:6]1)(=O)C.C(=O)([O-])[O-].[K+].[K+].O.C(OCC)(=O)C>C(O)C>[OH:4][CH:5]1[C:11]2=[N:12][C:13]([CH3:21])=[C:14]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[CH:15]=[C:10]2[CH2:9][CH2:8][CH2:7][CH2:6]1参加物
6
実験手順
Ethyl 9-acetoxy-2-methyl-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridine-3-carboxylate (4.90 g, 16.81 mmol) was dissolved in ethanol (30 ml), and the solution was mixed with potassium carbonate (3.29 g) and stirred at from 0° C. to room temperature for 24 hours. There action solution was mixed with water and ethyl acetate, and the thus precipitated crystals were filtered. The resulting filtrate was extracted with ethyl acetate, and the thus obtained organic layer was washed with water and saturated brine in that order and dried over anhydrous sodium sulfate. By evaporating the solvent under reduced pressure, the title compound (3.31 g, 79.9%) was obtained as pale yellow amorphous.
後処理
- filtrationthe thus precipitated crystals were filtered
- extractionThe resulting filtrate was extracted with ethyl acetate
- washthe thus obtained organic layer was washed with water and saturated brine in that order
- dry with materialdried over anhydrous sodium sulfate
- customBy evaporating the solvent under reduced pressure
出典と根拠
- ORDレコード
- ord-168ac60ef0c04aa989de80fa72b0a94a
- 出典データセット
- uspto-grants-2001_07
- 特許番号
- US06258829B1
反応ノート
読み込み中…