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Sodium periodate → 2-((5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-(cyclopropylmethyl)-2-oxo-3-(2-(triisopropylsilyloxy)ethyl)piperidin-3-yl)acetaldehyde

HRID 931958
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HRID 931958 반응식
[CH2:1]([C:4]1([CH2:29][CH2:30][O:31][Si:32]([CH:39]([CH3:41])[CH3:40])([CH:36]([CH3:38])[CH3:37])[CH:33]([CH3:35])[CH3:34])[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]([CH2:24][CH:25]2[CH2:27][CH2:26]2)[C:5]1=[O:28])[CH:2]=C.I([O-])(=O)(=O)=[O:43].[Na+]>C1COCC1.O.[Os](=O)(=O)(=O)=O>[Cl:16][C:12]1[CH:11]=[C:10]([C@@H:8]2[C@@H:7]([C:17]3[CH:18]=[CH:19][C:20]([Cl:23])=[CH:21][CH:22]=3)[N:6]([CH2:24][CH:25]3[CH2:26][CH2:27]3)[C:5](=[O:28])[C:4]([CH2:1][CH:2]=[O:43])([CH2:29][CH2:30][O:31][Si:32]([CH:33]([CH3:35])[CH3:34])([CH:39]([CH3:40])[CH3:41])[CH:36]([CH3:38])[CH3:37])[CH2:9]2)[CH:15]=[CH:14][CH:13]=1
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참가 물질

6

반응물 2

HCID 23667635Sodium periodateHCID 58573657(5R,6S)-3-Allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-(cyclopropylmethyl)-3-(2-(triisopropylsilyloxy)ethyl)piperidin-2-one

생성물 1

HCID 585735562-((5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-(cyclopropylmethyl)-2-oxo-3-(2-(triisopropylsilyloxy)ethyl)piperidin-3-yl)acetaldehyde

시약·촉매·용매 3

HCID 30318Osmium Tetroxide촉매
HCID 962
Water
용매
HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of 1.28 g (2.08 mmol) of (5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-(cyclopropylmethyl)-3-(2-(triisopropylsilyloxy)ethyl)piperidin-2-one (Example 69, Step A, mixture of diastereomers) in THF (50 mL) and water (17.5 mL) was added a catalytic amount of osmium tetroxide. After 25 min, 1.34 g (6.25 mmol) of sodium periodate was added. The resulting light brown slurry was stirred for 19 h and then was filtered through a fritted funnel. The filtrate was partially concentrated under reduced pressure, then was diluted with water and extracted with ethyl acetate (2×). The combined organic layers were washed with saturated aqueous sodium thiosulfate and then saturated aqueous sodium chloride. The organic layer was dried over Na2SO4, filtered and the filtrate was concentrated. The crude title compound (mixture of C-3 epimers) was used directly in the next step.

후처리

  1. filtrationwas filtered through a fritted funnel
  2. concentrationThe filtrate was partially concentrated under reduced pressure
  3. additionwas diluted with water
  4. extractionextracted with ethyl acetate (2×)
  5. washThe combined organic layers were washed with saturated aqueous sodium thiosulfate
  6. dry with materialThe organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. concentrationthe filtrate was concentrated

출처 및 근거

ORD 기록
ord-bf54ece646164513be896b274c5d2d88
출처 데이터셋
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09296736B2

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