반응식
[CH2:1]([O:4][C:5]1[CH:28]=[CH:27][C:8]([O:9][C:10]2[CH:11]=[CH:12][C:13]3[S:19](=[O:21])(=[O:20])[CH2:18][CH2:17][C:16]([C:22]([O:24]C)=[O:23])=[CH:15][C:14]=3[CH:26]=2)=[CH:7][CH:6]=1)[CH2:2][CH3:3].C(=O)([O-])[O-].[K+].[K+].Cl>C1COCC1.CO>[CH2:1]([O:4][C:5]1[CH:6]=[CH:7][C:8]([O:9][C:10]2[CH:11]=[CH:12][C:13]3[S:19](=[O:20])(=[O:21])[CH2:18][CH2:17][C:16]([C:22]([OH:24])=[O:23])=[CH:15][C:14]=3[CH:26]=2)=[CH:27][CH:28]=1)[CH2:2][CH3:3]참가 물질
반응 조건
- 온도
- 65 °C
실험 절차
Into a solution of methyl 7-(4-propoxyphenoxy)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylate (0.31 g) in THF-methanol (5-2.5 ml) was added at room temperature a 1 M aqueous solution of potassium carbonate (1.5 ml), and the resulting mixture was stirred at 65° C. for 40 hours. After cooling to room temperature, 1 N hydrochloric acid (10 ml) was added to the reaction mixture, which was extracted with ethyl acetate. The organic layer was washed with an aqueous saturated solution of sodium chloride and was dried with magnesium sulfate. After concentration under reduced pressure, the precipitated crystals were collected by filtration. The crystals were washed with diisopropyl ether to obtain 7-(4-propoxyphenoxy)-1,1-dioxo-2,3-dihydro-1-benzothiepine-4-carboxylic acid (226 mg) as light yellow crystals.
후처리
- temperatureAfter cooling to room temperature
- extractionwas extracted with ethyl acetate
- washThe organic layer was washed with an aqueous saturated solution of sodium chloride
- dry with materialwas dried with magnesium sulfate
- concentrationAfter concentration under reduced pressure
- filtrationthe precipitated crystals were collected by filtration
- washThe crystals were washed with diisopropyl ether
출처 및 근거
- ORD 기록
- ord-e24de21db28e466abdd87324a3d1d590
- 출처 데이터셋
- uspto-grants-2003_09
- 특허 번호
- US06627651B1
연결된 노트
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