反応式
[CH3:1][C:2]1[CH:3]=[N:4][C:5]([CH2:11][S+:12]([O-:24])[C:13]2[NH:14][C:15]3[CH:16]=[CH:17][C:18]([O:22][CH3:23])=[CH:19][C:20]=3[N:21]=2)=[C:6]([CH3:10])[C:7]=1[O:8][CH3:9].C1C=CC2C(C3C(O)=CC=C4C=3C=CC=C4)=C(O)C=CC=2C=1.O.[OH-].[Na+:49].[O-]CC.[Na+]>C(OC)(C)(C)C.C(OC(=O)C)C>[CH3:1][C:2]1[CH:3]=[N:4][C:5]([CH2:11][S+:12]([O-:24])[C:13]2[N-:14][C:15]3[CH:16]=[CH:17][C:18]([O:22][CH3:23])=[CH:19][C:20]=3[N:21]=2)=[C:6]([CH3:10])[C:7]=1[O:8][CH3:9].[Na+:49]参加物
反応条件
- 温度
- 2.5 °C
実験手順
Esomeprazole-BINOL inclusion complex (100 g; 158.3 mmol; ee of 98.2%) was suspended in a mixture of methyl t-butyl ether (1300 ml) and DM water (400 ml). Aqueous sodium hydroxide solution (5 w/w; 133 g) was added to the suspended mass at 20-30° C. and stirred till clear solution was obtained. Thereafter, organic layer was separated and the aqueous layer was washed with methyl t-butyl ether. Thereafter, 20% aqueous ammonium formate solution (60 ml) was added and extracted with methylene chloride (300 ml). The organic layer was washed with DM water and concentrated under reduced pressure to yield a foamy mass. The concentrated mass was dissolved in ethylacetate (400 ml) and cooled to 0-5° C. To the solution, sodium ethoxide (10.77 g, mmol) was added and stirred at 20-30° C. for 90 min. The separated solid mass was filtered, washed with ethyl acetate and dried under reduced pressure at 40° C. to yield esomeprazole sodium.
後処理
- customwas obtained
- customThereafter, organic layer was separated
- washthe aqueous layer was washed with methyl t-butyl ether
- additionThereafter, 20% aqueous ammonium formate solution (60 ml) was added
- extractionextracted with methylene chloride (300 ml)
- washThe organic layer was washed with DM water
- concentrationconcentrated under reduced pressure
- customto yield a foamy mass
- stirringstirred at 20-30° C. for 90 min
- filtrationThe separated solid mass was filtered
- washwashed with ethyl acetate
- customdried under reduced pressure at 40° C.
出典と根拠
- ORDレコード
- ord-f423ea6b9ac3460aa103689bf87e2690
- 出典データセット
- uspto-grants-2013_07
- 特許番号
- US08492551B2
関連ノート
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