Hydrogen chloride-ethyl acetate → Imarikiren

HRID 1184155ノート

反応式

HRID 1184155 の反応式
[CH3:1][O:2][CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[C:16]([N:18]([CH2:40][CH:41]([CH3:43])[CH3:42])[C@H:19]1[CH2:24][C@@H:23]([C:25]([N:27]2[CH2:32][CH2:31][O:30][CH2:29][CH2:28]2)=[O:26])[CH2:22][N:21](C(OC(C)(C)C)=O)[CH2:20]1)=[O:17].C(OCC)(=O)C.Cl>CO>[CH3:1][O:2][CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:11]2[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=2[N:9]=[C:8]1[C:16]([N:18]([CH2:40][CH:41]([CH3:43])[CH3:42])[C@H:19]1[CH2:24][C@@H:23]([C:25]([N:27]2[CH2:32][CH2:31][O:30][CH2:29][CH2:28]2)=[O:26])[CH2:22][NH:21][CH2:20]1)=[O:17]

参加物

4

反応物 2

HCID 21866389Hydrogen chloride-ethyl acetateHCID 58355127tert-butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-(morpholin-4-ylcarbonyl)piperidine-1-carboxylate

生成物 1

HCID 44554894Imarikiren収率 90.3%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

tert-Butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-(morpholin-4-ylcarbonyl)piperidine-1-carboxylate (5.85 g) was dissolved in methanol (20 ml), 4M hydrogen chloride-ethyl acetate (20 ml) was added, and the mixture was stirred at room temperature for 15 hr. The reaction mixture was concentrated, the residue was diluted with aqueous sodium bicarbonate, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to basic silica gel column chromatography, and a fraction eluted with ethyl acetate-methanol (9:1) was concentrated under reduced pressure to give the object product (4.40 g).

後処理

  1. concentrationThe reaction mixture was concentrated
  2. additionthe residue was diluted with aqueous sodium bicarbonate
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. washa fraction eluted with ethyl acetate-methanol (9:1)
  8. concentrationwas concentrated under reduced pressure

出典と根拠

ORDレコード
ord-05be263f4c6a4e51aae064bcc777979b
出典データセット
uspto-grants-2014_03
特許番号
US08664380B2

反応ノート

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