Ammonium Chloride → tert-butyl (3R,5S)-3-acetyl-5-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]piperidine-1-carboxylate

HRID 1259980ノート

反応式

HRID 1259980 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]([CH2:38][CH:39]([CH3:41])[CH3:40])[C@H:19]1[CH2:24][C@@H:23]([C:25](=[O:30])N(OC)C)[CH2:22][N:21]([C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH2:20]1)=[O:17].[CH3:42][Mg]Br.C1COCC1.[Cl-].[NH4+]>C1COCC1>[C:25]([C@H:23]1[CH2:22][N:21]([C:31]([O:33][C:34]([CH3:36])([CH3:37])[CH3:35])=[O:32])[CH2:20][C@@H:19]([N:18]([C:16]([C:8]2[N:7]([CH2:6][CH2:5][CH2:4][CH2:3][O:2][CH3:1])[C:11]3[CH:12]=[CH:13][CH:14]=[CH:15][C:10]=3[N:9]=2)=[O:17])[CH2:38][CH:39]([CH3:40])[CH3:41])[CH2:24]1)(=[O:30])[CH3:42]

参加物

5

反応物 3

HCID 25517Ammonium ChlorideHCID 58355290tert-butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-[methoxy(methyl)carbamoyl]piperidine-1-carboxylateHCID 178420675HCID 178420675、化合物

生成物 1

HCID 67321124tert-butyl (3R,5S)-3-acetyl-5-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]piperidine-1-carboxylate

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of tert-butyl (3S,5R)-3-[{[1-(4-methoxybutyl)-1H-benzimidazol-2-yl]carbonyl}(2-methylpropyl)amino]-5-[methoxy(methyl)carbamoyl]piperidine-1-carboxylate (1.06 g) in THF (20 ml) was added 1M-methyl magnesium bromide-THF solution (9.24 ml), and the mixture was stirred at room temperature for 5 hr. The reaction mixture was poured into saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to silica gel column chromatography, and a fraction eluted with ethyl acetate-hexane (1:9-3:2) was concentrated under reduced pressure to give the object product (0.59 g).

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water and saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. washa fraction eluted with ethyl acetate-hexane (1:9-3:2)
  6. concentrationwas concentrated under reduced pressure

出典と根拠

ORDレコード
ord-4363e6317ea14bf794e53f2762c93d23
出典データセット
uspto-grants-2013_06
特許番号
US08466282B2

反応ノート

読み込み中…