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Potassium Carbonate → methyl 4-(1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)benzoate

HRID 2206183
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HRID 2206183 반응식
FC(F)(F)S(O[C:7]1[C:11]2[C:12]([O:16][CH3:17])=[N:13][CH:14]=[CH:15][C:10]=2[N:9]([C:18]2[C:23]([F:24])=[CH:22][CH:21]=[CH:20][C:19]=2[F:25])[N:8]=1)(=O)=O.CC1(C)C(C)(C)OB([C:36]2[CH:45]=[CH:44][C:39]([C:40]([O:42][CH3:43])=[O:41])=[CH:38][CH:37]=2)O1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O>[F:24][C:23]1[CH:22]=[CH:21][CH:20]=[C:19]([F:25])[C:18]=1[N:9]1[C:10]2[CH:15]=[CH:14][N:13]=[C:12]([O:16][CH3:17])[C:11]=2[C:7]([C:36]2[CH:45]=[CH:44][C:39]([C:40]([O:42][CH3:43])=[O:41])=[CH:38][CH:37]=2)=[N:8]1
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6

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HCID 11430Potassium CarbonateHCID 2773500Methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoateHCID 1179878991-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonate

생성물 1

HCID 117988531methyl 4-(1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)benzoate수율 89%

시약·촉매·용매 2

HCID 962
Water
용매
2회
HCID 6228Dimethylformamide용매

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온도
90 °C

실험 절차

To a solution of 1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonate (3.20 g) obtained in Step C of Example 35 in DMF (20 mL)/water (2.0 mL) were added methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (2.87 g), (1,1′-bis(diphenylphosphino)ferrocene)dichloropalladium(II) (319 mg) and potassium carbonate (2.16 g). The reaction mixture was stirred overnight at 90° C. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (2.75 g).

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate)

출처 및 근거

ORD 기록
ord-014207d7a1794ab3847a522380915d26
출처 데이터셋
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09371320B2

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