Ammonia → 3-Amino-2-(p-chlorophenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetamide
反応式
[NH2:1][CH:2]1[C:8](=[O:9])[N:7]([CH2:10][C:11](OCC)=[O:12])[C:6]2[CH:16]=[CH:17][CH:18]=[CH:19][C:5]=2[S:4][CH:3]1[C:20]1[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=1.[NH3:27]>CO>[NH2:1][CH:2]1[C:8](=[O:9])[N:7]([CH2:10][C:11]([NH2:27])=[O:12])[C:6]2[CH:16]=[CH:17][CH:18]=[CH:19][C:5]=2[S:4][CH:3]1[C:20]1[CH:25]=[CH:24][C:23]([Cl:26])=[CH:22][CH:21]=1参加物
4
実験手順
In 200 ml of methanol is dissolved 1.5 g of ethyl 3-amino-2-(p-chlorophenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate, and ammonia gas is blown into the solution under ice-cooling up to the saturated state. The reaction temperature is slowly elevated to room temperature, and the reaction mixture is left standing overnight. Then, the reaction mixture is concentrated under reduced pressure. Ethyl acetate is added to the obtained residue, and the resulting crystals are collected by filtration to give 0.9 g of 3-amino-2-(p-chlorophenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetamide, m.p. 217-220° C. (decomposition).
後処理
- temperaturecooling up to the saturated state
- customis slowly elevated to room temperature
- waitthe reaction mixture is left
- concentrationThen, the reaction mixture is concentrated under reduced pressure
- additionEthyl acetate is added to the obtained residue
- filtrationthe resulting crystals are collected by filtration
出典と根拠
- ORDレコード
- ord-c03c649da04a42e48666a8b9e478d508
- 出典データセット
- uspto-grants-1991_10
- 特許番号
- US05055464
反応ノート
読み込み中…