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Water → 2-Benzhydryloxycarbonyl-7-t-butoxycarbonylamino-3-(2-dimethylamino-vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene

HRID 1902794
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HRID 1902794 반응식
[CH:1]([O:14][C:15]([C:17]1[N:18]2[CH:21]([S:22][CH2:23][C:24]=1[CH3:25])[CH:20]([NH:26][C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[C:19]2=[O:34])=[O:16])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:35][N:36]([CH:38](N(C)C)OC(C)(C)C)[CH3:37].C(OCC)(=O)C.O>CN(C)C=O>[CH:1]([O:14][C:15]([C:17]1[N:18]2[CH:21]([S:22][CH2:23][C:24]=1[CH:25]=[CH:35][N:36]([CH3:38])[CH3:37])[CH:20]([NH:26][C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[C:19]2=[O:34])=[O:16])([C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1
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참가 물질

6

반응물 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 79885tert-Butoxy bis(dimethylamino)methaneHCID 128967622-Benzhydryloxycarbonyl-7-t-butoxycarbonylamino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene

생성물 1

HCID 539143342-Benzhydryloxycarbonyl-7-t-butoxycarbonylamino-3-(2-dimethylamino-vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene수율 100.1%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매2회

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온도
80 °C

실험 절차

2-Benzhydryloxycarbonyl-7-tert.-butoxycarbonylamino-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene (90.5 g) is dissolved in anhydrous N,N-dimethylformamide (400 cc). The solution obtained is heated at 80° C. under an atmosphere of nitrogen. A solution, preheated to 80° C., of bis-dimethylamino-tert.-butoxymethane (36.1 g) in anhydrous N,N-dimethylformamide (60 cc) is then added rapidly. The reaction mixture is kept at 80° C. for 5 minutes and then poured into ethyl acetate (3 liters). After addition of distilled water (1 liter), the organic phase is decanted, washed with distilled water (4×1 liter), dried over sodium sulphate and filtered in the presence of decolorising charcoal. The filtrate is concentrated to dryness under reduced pressure (20 mm Hg) at 30° C., and 2-benzhydryloxycarbonyl-7-tert.-butoxycarbonylamino-3-(2-dimethylaminovinyl)-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene (E-form) (101 g) is obtained in the form of an orange-coloured froth.

후처리

  1. customThe solution obtained
  2. additionis then added rapidly
  3. customthe organic phase is decanted
  4. washwashed with distilled water (4×1 liter)
  5. dry with materialdried over sodium sulphate
  6. filtrationfiltered in the presence of decolorising charcoal
  7. concentrationThe filtrate is concentrated to dryness under reduced pressure (20 mm Hg) at 30° C.

출처 및 근거

ORD 기록
ord-33e5fc3ae8e648df81aa325c62e270cd
출처 데이터셋
uspto-grants-1982_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04365062

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