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Ethyl bromoacetate → ethyl (4-{6-[(2'-cyanobiphenyl-4-yl)methyl]-5-oxo-7-propylpyrazolo[1,5-a]pyrimidin-4(5H)-yl}phenoxy)acetate

HRID 519863
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HRID 519863 반응식
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:13](=[O:14])[C:12]([CH2:15][C:16]3[CH:21]=[CH:20][C:19]([C:22]4[C:23]([C:28]#[N:29])=[CH:24][CH:25]=[CH:26][CH:27]=4)=[CH:18][CH:17]=3)=[C:11]([CH2:30][CH2:31][CH3:32])[N:10]3[N:33]=[CH:34][CH:35]=[C:9]23)=[CH:4][CH:3]=1.Br[CH2:37][C:38]([O:40][CH2:41][CH3:42])=[O:39].C(=O)([O-])[O-].[Cs+].[Cs+].C(OCC)(=O)C>CN(C)C=O.O>[C:28]([C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=1[C:19]1[CH:20]=[CH:21][C:16]([CH2:15][C:12]2[C:13](=[O:14])[N:8]([C:5]3[CH:4]=[CH:3][C:2]([O:1][CH2:37][C:38]([O:40][CH2:41][CH3:42])=[O:39])=[CH:7][CH:6]=3)[C:9]3[N:10]([N:33]=[CH:34][CH:35]=3)[C:11]=2[CH2:30][CH2:31][CH3:32])=[CH:17][CH:18]=1)#[N:29]
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참가 물질

7

반응물 4

HCID 7748Ethyl bromoacetateHCID 8857Ethyl AcetateHCID 10796Cesium carbonateHCID 670088984'-{[4-(4-Hydroxyphenyl)-5-oxo-7-propyl-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

생성물 1

HCID 86644072ethyl (4-{6-[(2'-cyanobiphenyl-4-yl)methyl]-5-oxo-7-propylpyrazolo[1,5-a]pyrimidin-4(5H)-yl}phenoxy)acetate수율 75%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

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온도
70 °C

실험 절차

To a solution of 4′-{[4-(4-hydroxyphenyl)-5-oxo-7-propyl-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (0.92 g) in N,N-dimethylformamide (10 mL) were added ethyl bromoacetate (0.66 mL) and cesium carbonate (1.3 g) and the mixture was stirred at 70° C. for 15 hr. The mixture was allowed to cool, ethyl acetate and water were added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow amorphous solid (0.82 g, 75%).

후처리

  1. temperatureto cool
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with water and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-e837bbbe16904970824f67065756ad6f
출처 데이터셋
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09115136B2

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