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Ethyl Acetate → (3S,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((3S)-1,1,1-trifluoro-2-hydroxypentan-3-yl)piperidin-2-one

HRID 931898
ノート
印刷プレビュー

反応式

HRID 931898 の反応式
[CH2:1]([C@H:4]1[CH2:9][C@H:8]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([Cl:16])[CH:11]=2)[C@@H:7]([C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[CH:19][CH:18]=2)[N:6]([C@@H:24]([CH2:27][CH3:28])[CH:25]=[O:26])[C:5]1=[O:29])[CH:2]=[CH2:3].C[Si](C)(C)[C:32]([F:35])([F:34])[F:33].[F-].C([N+](CCCC)(CCCC)CCCC)CCC.CCOC(C)=O>C1COCC1>[CH2:1]([C@H:4]1[CH2:9][C@H:8]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([Cl:16])[CH:11]=2)[C@@H:7]([C:17]2[CH:18]=[CH:19][C:20]([Cl:23])=[CH:21][CH:22]=2)[N:6]([C@@H:24]([CH2:27][CH3:28])[CH:25]([OH:26])[C:32]([F:35])([F:34])[F:33])[C:5]1=[O:29])[CH:2]=[CH2:3]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 8857Ethyl AcetateHCID 552549(Trifluoromethyl)trimethylsilane2 回HCID 2724141Tetrabutylammonium Fluoride2 回HCID 58573802(S)-2-((3S,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-2-oxopiperidin-1-yl)butanal

生成物 1

HCID 58573560(3S,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-((3S)-1,1,1-trifluoro-2-hydroxypentan-3-yl)piperidin-2-one

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒3 回

実験手順

A solution of (S)-2-((3S,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-2-oxopiperidin-1-yl)butanal (80 mg, 0.186 mmol) and trimethyl(trifluoromethyl)silane (82 μL, 0.558 mmol) in THF (929 μL) was treated at 0° C. with 1 M tetrabutylammonium fluoride in THF (93 μL, 0.093 mmol). After being stirred for 1 h, three additional equivalents of trimethyl(trifluoromethyl)silane (82 μL, 0.558 mmol) and 1 M tetrabutylammonium fluoride in THF (93 μL, 0.093 mmol) were added to the reaction at 0° C. and the reaction was stirred for 14 h. The reaction mixture was diluted (EtOAc), washed (1×H2O and 1×sat. aq. NaCl solution), dried (Na2SO4), and concentrated under reduced pressure. Purification by reverse phase preparatory HPLC (Gemini™ Prep C18 5 μm column, Phenomenex, Torrance, Calif.; eluent: 60 to 90% acetonitrile +0.1% TFA in water +0.1% TFA, gradient elution) provided two compounds which are diastereomers at the secondary alcohol.

後処理

  1. stirringthe reaction was stirred for 14 h
  2. washwashed (1×H2O and 1×sat. aq. NaCl solution)
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated under reduced pressure
  5. customPurification
  6. washby reverse phase preparatory HPLC (Gemini™ Prep C18 5 μm column, Phenomenex, Torrance, Calif.; eluent: 60 to 90% acetonitrile +0.1% TFA in water +0.1% TFA, gradient elution)
  7. customprovided two compounds which

出典と根拠

ORDレコード
ord-19297e44d49a4b82b552cc6d2847b5ff
出典データセット
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09296736B2

反応ノート

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