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methyl (S)-3-(4-benzyloxybenzenesulfonylamino)-2-(4-methanesulfonylpiperazin-1-yl)propanoate → methyl (S)-3-(4-hydroxybenzenesulfonylamino)-2-(4-methanesulfonylpiperazin-1-yl)propanoate

HRID 874565
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인쇄 미리보기

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HRID 874565 반응식
C([O:8][C:9]1[CH:14]=[CH:13][C:12]([S:15]([NH:18][CH2:19][C@H:20]([N:25]2[CH2:30][CH2:29][N:28]([S:31]([CH3:34])(=[O:33])=[O:32])[CH2:27][CH2:26]2)[C:21]([O:23][CH3:24])=[O:22])(=[O:17])=[O:16])=[CH:11][CH:10]=1)C1C=CC=CC=1>C(O)C.O1CCOCC1.C(O)(=O)C.[Pd]>[OH:8][C:9]1[CH:14]=[CH:13][C:12]([S:15]([NH:18][CH2:19][C@H:20]([N:25]2[CH2:26][CH2:27][N:28]([S:31]([CH3:34])(=[O:33])=[O:32])[CH2:29][CH2:30]2)[C:21]([O:23][CH3:24])=[O:22])(=[O:16])=[O:17])=[CH:11][CH:10]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 1

HCID 86675014methyl (S)-3-(4-benzyloxybenzenesulfonylamino)-2-(4-methanesulfonylpiperazin-1-yl)propanoate

생성물 1

HCID 86675015methyl (S)-3-(4-hydroxybenzenesulfonylamino)-2-(4-methanesulfonylpiperazin-1-yl)propanoate수율 100.4%

시약·촉매·용매 4

HCID 23938Palladium촉매HCID 176Acetic Acid용매HCID 702Ethanol용매
HCID 312751,4-Dioxane용매2회

실험 절차

A solution of 2.0 g (3.9 mmol) of methyl (S)-3-(4-benzyloxybenzenesulfonylamino)-2-(4-methanesulfonylpiperazin-1-yl)propanoate (prepared as described in example 3.6) in 80 ml of ethanol, 30 ml of dioxane and 0.5 ml of glacial acetic acid is degassed under a nitrogen stream and then 200 mg (10% by weight) of palladium-on-carbon at 10% in suspension in 3 ml of dioxane are added. The reaction medium is placed under a hydrogen atmosphere and stirred at ambient temperature for 18 h. After filtration through celite, the filtrate is hydrolyzed and then the product is extracted with ethyl acetate. The organic phase is washed with water and then with a saturated aqueous solution of sodium chloride, dried over magnesium sulfate, filtered and concentrated under vacuum. 1.65 g (100%) of methyl (S)-3-(4-hydroxybenzenesulfonylamino)-2-(4-methanesulfonylpiperazin-1-yl)propanoate are obtained in the form of a white solid.

후처리

  1. filtrationAfter filtration through celite
  2. extractionthe product is extracted with ethyl acetate
  3. washThe organic phase is washed with water
  4. dry with materialwith a saturated aqueous solution of sodium chloride, dried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under vacuum

출처 및 근거

ORD 기록
ord-ca159d851e1a411696095ac8e5481d2f
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08980897B2

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