Water → Di-tert-butyl (4R)-N-(tert-butoxycarbonyl)-4-{[5-(2-{[(4-methylphenyl)sulfonyl]oxy}ethoxy)pyridin-2-yl]methyl}-L-glutamate

HRID 591302노트

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HRID 591302 반응식
[C:1]([O:5][C:6]([NH:8][C@H:9]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:10][C@H:11]([CH2:19][C:20]1[CH:25]=[CH:24][C:23]([OH:26])=[CH:22][N:21]=1)[C:12]([O:14][C:15]([CH3:18])([CH3:17])[CH3:16])=[O:13])=[O:7])([CH3:4])([CH3:3])[CH3:2].C(=O)([O-])[O-].[Cs+].[Cs+].[C:40]1([CH3:63])[CH:45]=[CH:44][C:43]([S:46]([O:49][CH2:50][CH2:51]OS(C2C=CC(C)=CC=2)(=O)=O)(=[O:48])=[O:47])=[CH:42][CH:41]=1.O>CN(C)C=O>[C:1]([O:5][C:6]([NH:8][C@H:9]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:10][C@H:11]([CH2:19][C:20]1[CH:25]=[CH:24][C:23]([O:26][CH2:51][CH2:50][O:49][S:46]([C:43]2[CH:44]=[CH:45][C:40]([CH3:63])=[CH:41][CH:42]=2)(=[O:48])=[O:47])=[CH:22][N:21]=1)[C:12]([O:14][C:15]([CH3:16])([CH3:18])[CH3:17])=[O:13])=[O:7])([CH3:2])([CH3:3])[CH3:4]

참가 물질

6

반응물 4

HCID 962WaterHCID 10796Cesium carbonateHCID 228289Ethylene glycol ditosylateHCID 70957058Di-tert-butyl (4R)-N-(tert-butoxycarbonyl)-4-[(5-hydroxypyridin-2-yl)methyl]-L-glutamate

생성물 1

HCID 70675125Di-tert-butyl (4R)-N-(tert-butoxycarbonyl)-4-{[5-(2-{[(4-methylphenyl)sulfonyl]oxy}ethoxy)pyridin-2-yl]methyl}-L-glutamate수율 40.4%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of 150 mg di-tert-butyl (4R)—N-(tert-butoxycarbonyl)-4-[(5-hydroxypyridin-2-yl)methyl]-L-glutamate (0.32 mmol) in N,N-dimethylformamide (8 mL) was added 126 mg of cesium carbonate (0.39 mmol), followed by 143 mg of 1,2-ethanediol di-p-toluenesulfonate (0.39 mmol). The mixture was stirred for 5 h at room temperature. Water was added, the mixture was extracted with dichloromethane, and the organic layer was washed with brine, dried over magnesium sulfate, and evaporated. The crude product was purified by preparative HPLC (method A) to give 86 mg (40% yield) of the title compound.

후처리

  1. extractionthe mixture was extracted with dichloromethane
  2. washthe organic layer was washed with brine
  3. dry with materialdried over magnesium sulfate
  4. customevaporated
  5. customThe crude product was purified by preparative HPLC (method A)

출처 및 근거

ORD 기록
ord-12a5a13a70764d95b3deb4f4ea9d912a
출처 데이터셋
uspto-grants-2016_01
특허 번호
US09238631B2

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