反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:14]3[C:15]([CH3:19])=[C:16]([CH3:18])[S:17][C:13]=3[N:12]3[C:20]([CH3:23])=[N:21][N:22]=[C:11]3[C@H:10]([CH2:24][C:25](O)=[O:26])[N:9]=2)=[CH:4][CH:3]=1.[CH2:28]([N:30](CC)CC)C.C(Cl)(=O)C(C)(C)C.CN>CN(C)C=O.O.O1CCCC1>[CH3:28][NH:30][C:25](=[O:26])[CH2:24][C@@H:10]1[N:9]=[C:8]([C:5]2[CH:4]=[CH:3][C:2]([Cl:1])=[CH:7][CH:6]=2)[C:14]2[C:15]([CH3:19])=[C:16]([CH3:18])[S:17][C:13]=2[N:12]2[C:20]([CH3:23])=[N:21][N:22]=[C:11]12参加物
反応物 4
生成物 1
試薬・触媒・溶媒 3
反応条件
- 温度
- -5 °C
実験手順
(S)-4-(4-Chlorophenyl)-2,3,9-trimethyl-6H-thieno[3,2-f]-[1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetic acid (7.0 g) and triethylamine (2.73 ml) are added to a mixed solvent of dimethylformamide (70 ml) and tetrahydrofuran (30 ml). The mixture is cooled to -5° C., and pivaloyl chloride (2.38 ml) is dropwise added at said temperature. Ten minutes later, a solution of methylamine (0.69 g) in dimethylformamide (5 ml) is dropwise added at said temperature, and the mixture is stirred at room temperature for 2 hours. Water is added to the reaction mixture, and the mixture is extracted with ethyl acetate, washed with water and dried over anhydrous magnesium sulfate. The solvent is distilled away, and the residue is recrystallized from water/methanol to give 2.29 g of (S)-N-methyl-4-(4-chloro-phenyl)-2,3,9-trimethyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a]-[1,4]diazepine-6-acetamide 1/4 hydrate, melting point 143°-145° C.
後処理
- extractionthe mixture is extracted with ethyl acetate
- washwashed with water
- dry with materialdried over anhydrous magnesium sulfate
- distillationThe solvent is distilled away
- customthe residue is recrystallized from water/methanol
出典と根拠
- ORDレコード
- ord-a9af79cf68fe44bd955b58f6d97777a8
- 出典データセット
- uspto-grants-1998_01
- 特許番号
- US05712274
関連ノート
読み込み中…