Propynamide → 3-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octan-2-yl)isoxazole-5-carboxamide

HRID 515600

반응식

HRID 515600 반응식
[C:1]([NH2:5])(=[O:4])[C:2]#[CH:3].[CH2:6]([O:13][N:14]1[C:20](=[O:21])[N:19]2[CH2:22][C@H:15]1[CH2:16][CH2:17][C@H:18]2/[C:23](/Cl)=[N:24]/[OH:25])[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1>C(Cl)Cl.CCOC(C)=O>[CH2:6]([O:13][N:14]1[C:20](=[O:21])[N:19]2[CH2:22][C@H:15]1[CH2:16][CH2:17][C@H:18]2[C:23]1[CH:3]=[C:2]([C:1]([NH2:5])=[O:4])[O:25][N:24]=1)[C:7]1[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=1

참가 물질

5

반응물 2

HCID 101445PropynamideHCID 89886626(2Z,2S,5R)-N-hydroxy-7-oxo-6-phenylmethoxy-1,6-diazabicyclo[3.2.1]octane-2-carboximidoyl chloride

생성물 1

HCID 867013773-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octan-2-yl)isoxazole-5-carboxamide수율 32.1%

시약·촉매·용매 2

HCID 6344Dichloromethane용매2회HCID 8857Ethyl Acetate용매

실험 절차

Propiolamide (0.30 g, 4.37 mmol) was added to a solution of (2S,5R,Z)-6-(benzyloxy)-N-hydroxy-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carb imido yl chloride (3.64 mmol) in dry DCM (10 mL), followed by the addition of TEA (0.56 mL, 4.0 mmol) in DCM (2 mL) over a 30 minute period. The reaction mixture was stirred at rt overnight. Then the mixture was diluted with EtOAc, washed with water and saturated sodium chloride. The combined organic layer was dried over Na2SO4, concentrated and purified by silica gel column chromatography (gradient elution 5:1 to 1:2, petroleum ether/EtOAc containing 1% TEA) to afford 3-((2S,5R)-6-(benzyloxy)-7-oxo-1,6-diaza-bicyclo[3.2.1]octan-2-yl)isoxazole-5-carboxamide (0.4 g, 32%) as a yellow solid. ESI-MS (EI+, m/z): 343 [M+H]+.

후처리

  1. washwashed with water and saturated sodium chloride
  2. dry with materialThe combined organic layer was dried over Na2SO4
  3. concentrationconcentrated
  4. custompurified by silica gel column chromatography (gradient elution 5:1 to 1:2, petroleum ether/EtOAc containing 1% TEA)

출처 및 근거

ORD 기록
ord-6ad301314de5489399e883b534ab5196
출처 데이터셋
uspto-grants-2015_08
특허 번호
US09108966B2

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