反応式
[CH3:1][O:2][C:3](=[O:23])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:15]=[CH:14][C:13]([C:16](=[O:18])[CH3:17])=[C:12]([OH:19])[C:11]=1[CH2:20][CH2:21][CH3:22].[S:24]([O:28][CH2:29][CH2:30][O:31][CH2:32][CH2:33]OS(=O)(=O)C)(=[O:27])(=[O:26])[CH3:25].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O.CN(C)C=O>[CH3:1][O:2][C:3](=[O:23])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:15]=[CH:14][C:13]([C:16](=[O:18])[CH3:17])=[C:12]([O:19][CH2:33][CH2:32][O:31][CH2:30][CH2:29][O:28][S:24]([CH3:25])(=[O:27])=[O:26])[C:11]=1[CH2:20][CH2:21][CH3:22]参加物
6
実験手順
A mixture of 4.0 g (0.012 mole) of 6-(4-acetyl-3-hydroxy-2-propylphenoxy)hexanoic acid methyl ester, 16.3 g (0.062 mole) of diethyleneglycol dimesylate and 3.4 g (0.024 mole) of anhydrous potassium carbonate in 90 ml of anhydrous acetone and 4 ml of anhydrous dimethylformamide was stirred at reflux for 22 hours. The solvents were removed in vacuo and the residue was treated with 100 ml of 50% ethyl acetate-hexane. Some of the residual starting dimesylate was insoluble and was removed by filtration. The filtrate was concentrated in vacuo and the residual oil was purified by HPLC to give 4.8 g (80% yield) of 6-[4-acetyl-3-[2-[2-[(methylsulfonyl)oxy]ethoxy]ethoxy]-2-propylphenoxy]hexanoic acid methyl ester as an oil.
後処理
- temperatureat reflux for 22 hours
- customThe solvents were removed in vacuo
- additionthe residue was treated with 100 ml of 50% ethyl acetate-hexane
- customwas removed by filtration
- concentrationThe filtrate was concentrated in vacuo
- customthe residual oil was purified by HPLC
出典と根拠
- ORDレコード
- ord-d5ae3efa277b499f9d06dc135a3872c3
- 出典データセット
- uspto-grants-1985_03
- 特許番号
- US04507498
関連ノート
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