反応式
[NH2:1][C:2]1[N:6]([CH:7]2[CH2:11][CH2:10][CH2:9][CH2:8]2)[N:5]=[CH:4][C:3]=1[C:12]([NH2:14])=[O:13].[Cl:15][C:16]1[CH:17]=[C:18]([CH2:22][C:23](OCC)=O)[CH:19]=[CH:20][CH:21]=1.C(O)C.[H-].[Na+]>O>[Cl:15][C:16]1[CH:17]=[C:18]([CH:19]=[CH:20][CH:21]=1)[CH2:22][C:23]1[NH:14][C:12](=[O:13])[C:3]2[CH:4]=[N:5][N:6]([CH:7]3[CH2:11][CH2:10][CH2:9][CH2:8]3)[C:2]=2[N:1]=1参加物
6
実験手順
Under argon, 180 mg (0.91 mmol) of 5-amino-1-cyclopentyl-1H-pyrazole-4-carboxamide and 575 mg (2.72 mmol; 3 equiv.) of ethyl (3-chlorophenyl)acetate are introduced into 3.5 ml of absolute ethanol. At 0° C., 127 mg of sodium hydride (60% dispersion in mineral oil; 3.18 mmol; 3.5 equiv.) are slowly added in a countercurrent of argon. The resulting mixture is slowly warmed and stirred under reflux for 18 h. The mixture is worked up by adding 50 ml of water and extracted several times with ethyl acetate. The combined organic phases are dried over sodium sulfate and concentrated in vacuo. The crude product is purified by preparative HPLC.
後処理
- temperatureThe resulting mixture is slowly warmed
- temperatureunder reflux for 18 h
- extractionextracted several times with ethyl acetate
- dry with materialThe combined organic phases are dried over sodium sulfate
- concentrationconcentrated in vacuo
- customThe crude product is purified by preparative HPLC
出典と根拠
- ORDレコード
- ord-31b26db9e03744e59abc79ad8d68d153
- 出典データセット
- uspto-grants-2012_04
- 特許番号
- US08158633B2
関連ノート
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