Methyl iodide → HCID 15056144、化合物
反応式
[CH3:1][S:2]([O:5][C@H:6]1[CH2:10][N:9]([C:11]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[CH:17][CH:16]=2)=[O:12])[C@H:8]([CH2:24][N:25]2[CH2:29][CH2:28][NH:27][C:26]2=[O:30])[CH2:7]1)(=[O:4])=[O:3].[OH-].[Na+].I[CH3:34]>CN(C)C=O>[CH3:1][S:2]([O:5][C@H:6]1[CH2:10][N:9]([C:11]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[CH:17][CH:16]=2)=[O:12])[C@H:8]([CH2:24][N:25]2[CH2:29][CH2:28][N:27]([CH3:34])[C:26]2=[O:30])[CH2:7]1)(=[O:4])=[O:3]参加物
実験手順
To a solution of (2S,4R)-4-methanesulfonyloxy-1-(4-nitrobenzyloxycarbonyl)-2-(2-oxoimidazolidin-1-yl)methylpyrrolidine (0.80 g) in N,N-dimethylformamide (10 ml) was added sodium hydroxide (78 mg) under ice-cooling and the mixture was stirred at the same temperature for 20 minutes. To a solution was added iodomethane (0.34 ml) and the mixture was stirred at 30° C.-50° C. for 1 hour. The reaction mixture was poured into ice-water (30 ml) and extracted twice with ethyl acetate (30 ml). The extract was washed with saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate and evaporated in vacuo. The resulting residue was chromatographed on silica gel (100 g) eluting with a mixture of chloroform and methanol (19:l,V/V). The fractions containing the desired compound were collected and evaporated in vacuo to give (2S,4R)-4-methanesulfonyloxy-2-(3-methyl-2-oxoimidazolidin-1-yl)methyl-1-(4-nitrobenzyloxycarbonyl)pyrrolidine (0.78 g).
後処理
- temperaturecooling
- stirringthe mixture was stirred at 30° C.-50° C. for 1 hour
- extractionextracted twice with ethyl acetate (30 ml)
- washThe extract was washed with saturated aqueous sodium chloride
- dry with materialdried over anhydrous magnesium sulfate
- customevaporated in vacuo
- customThe resulting residue was chromatographed on silica gel (100 g)
- washeluting with a mixture of chloroform and methanol (19:l,V/V)
- additionThe fractions containing the desired compound
- customwere collected
- customevaporated in vacuo
出典と根拠
- ORDレコード
- ord-eca514888a84474c9e949cd32775902a
- 出典データセット
- uspto-grants-1990_05
- 特許番号
- US04925838
反応ノート
読み込み中…