HCID 15056137、化合物 → (2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(2-oxoimidazolidin-1-yl)methylpyrrolidine

HRID 1650836ノート

反応式

HRID 1650836 の反応式
CS(O[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)=O.[C:31]([O-:34])(=[S:33])[CH3:32].[K+]>CN(C)C=O>[C:31]([S:33][C@@H:6]1[CH2:10][N:9]([C:11]([O:13][CH2:14][C:15]2[CH:16]=[CH:17][C:18]([N+:21]([O-:23])=[O:22])=[CH:19][CH:20]=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:34])[CH3:32]

参加物

4

反応物 2

HCID 15056137HCID 15056137、化合物HCID 23670855Potassium ethanethioate

生成物 1

HCID 57168905(2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(2-oxoimidazolidin-1-yl)methylpyrrolidine収率 70%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a solution of (2S,4R)-4-methanesulfonyloxy-1-(4-nitrobenzyloxycarbonyl)-2-(2-oxoimidazolidin-1-yl)methylpyrrolidine (1.84 g) in dimethylformamide (40 ml) was added potassium thioacetate (0.95 g) and the mixture was stirred at 70°-80° C. for 2 hours. The reaction mixture was poured into ice-water (200 ml) and extracted 3 times with ethyl acetate (100 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 (9:1 V/V). The fractions containing the desired compound were collected and evaporated in vacuo to give (2S,4S)-4-acetylthio-1-(4-nitrobenzyloxycarbonyl)-2-(2-oxoimidazolidin-1-yl)methylpyrrolidine (1.23 g).

後処理

  1. extractionextracted 3 times with ethyl acetate (100 ml)
  2. washThe extract was washed with saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customevaporated in vacuo
  5. customThe resulting residue was chromatographed on silica gel (100 g)
  6. washeluting with a mixture of chloroform and methanol (9:1 V/V)
  7. additionThe fractions containing the desired compound
  8. customwere collected
  9. customevaporated in vacuo

出典と根拠

ORDレコード
ord-bb6900570abe4d3982615f3960a04c1e
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…