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Hydrochloric Acid → (2S, 3S)-3-(5-(1,1-Difluoroethyl)-2-(trifluoromethoxy)benzyl)amino-2-phenylpiperidine

HRID 2269253
ノート
印刷プレビュー

反応式

HRID 2269253 の反応式
C(OC([N:8]1[CH2:13][CH2:12][CH2:11][C@H:10]([NH:14][CH2:15][C:16]2[CH:21]=[C:20]([C:22]([F:25])([F:24])[CH3:23])[CH:19]=[CH:18][C:17]=2[O:26][C:27]([F:30])([F:29])[F:28])[C@@H:9]1[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)=O)(C)(C)C.Cl.[OH-].[Na+]>C(OCC)(=O)C>[F:25][C:22]([C:20]1[CH:19]=[CH:18][C:17]([O:26][C:27]([F:28])([F:29])[F:30])=[C:16]([CH:21]=1)[CH2:15][NH:14][C@H:10]1[CH2:11][CH2:12][CH2:13][NH:8][C@H:9]1[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)([F:24])[CH3:23]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 70001814(2S,3S)-1-tert-Butoxycarbonyl-3-(5-(1,1-difluoroethyl)-2-(trifluoromethoxy)benzyl)amino-2-phenylpiperidine

生成物 1

HCID 57090611(2S, 3S)-3-(5-(1,1-Difluoroethyl)-2-(trifluoromethoxy)benzyl)amino-2-phenylpiperidine収率 70%

試薬・触媒・溶媒 1

HCID 8857
Ethyl Acetate
溶媒

実験手順

To a stirred solution of Compound 26 (660 mg, 1.25 mmol) in ethyl acetate (6 ml) was added c. HCl aq. (2 ml) with ice-cooling. The reaction mixture was stirred at room temperature for 50 min. The mixture was basified to pH10-11 with 10% NaOH aq. with ice-cooling. The organic layer was separated and the aqueous layer was extracted with AcOEt. The combined solution was washed with brine, dried (MgSO4), and concentrated in vacuo to give crude product as a pale yellow oil. The crude product was purified by column chromatography on silica gel with dichloromethane-methanol (20:1) to give Compound 27 (360 mg, 70%) as a yellow oil.

後処理

  1. temperaturecooling
  2. customThe organic layer was separated
  3. extractionthe aqueous layer was extracted with AcOEt
  4. washThe combined solution was washed with brine
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated in vacuo
  7. customto give crude product as a pale yellow oil
  8. customThe crude product was purified by column chromatography on silica gel with dichloromethane-methanol (20:1)

出典と根拠

ORDレコード
ord-8971dbd0e3b04b2f9b9f41946fac5485
出典データセット
uspto-grants-2001_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06329396B1

反応ノート

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