Pyridine → (3S,4S)-1-(allyloxyoxalyl)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-{(phenylthio)thiocarbonyl}ethyl]-2-oxoazetidine

HRID 1464734

반응식

HRID 1464734 반응식
[C:1]([Si:5]([CH3:26])([CH3:25])[O:6][C@@H:7]([C@@H:9]1[C@@H:12]([C@H:13]([C:15]([S:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)=[S:16])[CH3:14])[NH:11][C:10]1=[O:24])[CH3:8])([CH3:4])([CH3:3])[CH3:2].N1C=CC=CC=1.Cl[C:34](=[O:41])[C:35]([O:37][CH2:38][CH:39]=[CH2:40])=[O:36]>ClCCl>[CH2:38]([O:37][C:35](=[O:36])[C:34]([N:11]1[C@H:12]([C@H:13]([C:15]([S:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)=[S:16])[CH3:14])[C@@H:9]([C@H:7]([O:6][Si:5]([C:1]([CH3:4])([CH3:2])[CH3:3])([CH3:26])[CH3:25])[CH3:8])[C:10]1=[O:24])=[O:41])[CH:39]=[CH2:40]

참가 물질

5

반응물 3

HCID 1049Pyridine2회HCID 3018516Allyl chlorooxoacetate2회HCID 22851409(3S,4S)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-{(phenylthio)thiocarbonyl}ethyl]-2-oxoazetidine

생성물 1

HCID 86747785(3S,4S)-1-(allyloxyoxalyl)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-{(phenylthio)thiocarbonyl}ethyl]-2-oxoazetidine

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a mixture of (3S,4S)-3-[(1R)-1-(tertbutyldimethylsilyloxy)ethyl] -4-[(1R)-1-{(phenylthio)thiocarbonyl}ethyl]-2-oxoazetidine (5.12 g) in dichloromethane (50 ml) were added pyridine (1.8 ml) and allyl chloroglyoxylate (2.3 ml) successively at 0° C. After stirring for 2 hours at the same temperature, to the solution were added pyridine (0.9 ml) and allyl chloroglyoxylate (0.75 ml). After stirring for 1 hour at 0° C., the solution was washed with water, 1N hydrochloric acid and brine, and dried. The solvent was removed under reduced pressure and the residue was purified by column chromatography (ethyl acetate:hexane=1:9) to afford (3S,4S)-1-(allyloxyoxalyl)-3-[(1R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-[(1R)-1-{(phenylthio)thiocarbonyl}ethyl]-2-oxoazetidine (4.77 g).

후처리

  1. stirringAfter stirring for 1 hour at 0° C.
  2. washthe solution was washed with water, 1N hydrochloric acid and brine
  3. customdried
  4. customThe solvent was removed under reduced pressure
  5. customthe residue was purified by column chromatography (ethyl acetate:hexane=1:9)

출처 및 근거

ORD 기록
ord-b72e9caed46d4b28a0d016e8c4139a1e
출처 데이터셋
uspto-grants-1994_04
특허 번호
US05306816

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