1,4-Dioxane → N-methyl-N-phenethyl-2-[5-benzyloxy-1-(2-carbethoxyvinyl)indol-3-yl]acetamide
反応式
[CH3:1][N:2]([CH2:23][CH2:24][C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)[C:3](=[O:22])[CH2:4][C:5]1[C:13]2[C:8](=[CH:9][CH:10]=[C:11]([O:14][CH2:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[CH:12]=2)[NH:7][CH:6]=1.[OH-:31].C([N+](C)(C)C)[C:33]1[CH:38]=[CH:37]C=CC=1.C1C=CC(C2C=CC(NC3C=CC=CC=3)=CC=2)=CC=1.[O:62]1CCO[CH2:64][CH2:63]1>>[CH3:1][N:2]([CH2:23][CH2:24][C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1)[C:3](=[O:22])[CH2:4][C:5]1[C:13]2[C:8](=[CH:9][CH:10]=[C:11]([O:14][CH2:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[CH:12]=2)[N:7]([CH:37]=[CH:38][C:33]([O:62][CH2:63][CH3:64])=[O:31])[CH:6]=1参加物
5
実験手順
To a mixture of 1.579 g (3.96 mmol) of N-methyl-N-phenethyl-2-(5-benzyloxyindol-3-yl)acetamide and 0.4 ml of benzyltrimethylammonium hydroxide (40% solution in methanol) in 15 ml of dioxane is added with stirring 0.44 ml (0.43 g, 4.35 mmol) of ethyl propriolate. A reddish solution is obtained, which is stirred at room temperature for 18 hours and concentrated in vacuo. The residue is taken up in ethyl acetate, washed with brine, dried over magnesium sulfate and concentrated in vacuo. The residue is purified by dry column chromatography over silica gel eluting with a solvent system of 5% ethyl acetate in methylene chloride to yield 450 mg of N-methyl-N-phenethyl-2-[5-benzyloxy-1-(2-carbethoxyvinyl)indol-3-yl]acetamide.
後処理
- additionis added
- customA reddish solution is obtained
- concentrationconcentrated in vacuo
- washwashed with brine
- dry with materialdried over magnesium sulfate
- concentrationconcentrated in vacuo
- customThe residue is purified
- dry with materialby dry column chromatography over silica gel eluting with a solvent system of 5% ethyl acetate in methylene chloride
出典と根拠
- ORDレコード
- ord-5d5e73cb61e64b33ad77920a61d0ab71
- 出典データセット
- uspto-grants-1995_11
- 特許番号
- US05468898
反応ノート
読み込み中…