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2-Amino-3-methylpyridine → (R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)-N-(3-methylpyridin-2-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide

HRID 1631312
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HRID 1631312 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([F:8])=[CH:4][C:3]=1[C@H:9]1[CH2:13][CH2:12][CH2:11][N:10]1[C:14]1[CH:19]=[CH:18][N:17]2[N:20]=[CH:21][C:22]([C:23](O)=[O:24])=[C:16]2[N:15]=1.S(Cl)(Cl)=O.[NH2:30][C:31]1[C:36]([CH3:37])=[CH:35][CH:34]=[CH:33][N:32]=1>C(Cl)(Cl)(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([F:8])=[CH:4][C:3]=1[C@H:9]1[CH2:13][CH2:12][CH2:11][N:10]1[C:14]1[CH:19]=[CH:18][N:17]2[N:20]=[CH:21][C:22]([C:23]([NH:30][C:31]3[C:36]([CH3:37])=[CH:35][CH:34]=[CH:33][N:32]=3)=[O:24])=[C:16]2[N:15]=1
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참가 물질

5

반응물 3

HCID 153472-Amino-3-methylpyridineHCID 24386Thionyl ChlorideHCID 66847716(R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid

생성물 1

HCID 49869936(R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)-N-(3-methylpyridin-2-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide수율 29%

시약·촉매·용매 1

HCID 5943
Carbon Tetrachloride
용매

실험 절차

To a suspension of (R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (Preparation C, 25.0 mg, 0.072 mmol) in CCl4 (1.0 mL) was added thionyl chloride (0.10 mL) and the mixture heated at reflux for 4 hours. The mixture was cooled to ambient temperature and was concentrated to a brittle foam. The foam was dissolved in pyridine (2 mL), 2-amino-3-methyl-pyridine (9.3 mg, 0.086 mmol) was added and the mixture was heated at 90° C. for 20 hours. The reaction was cooled to ambient temperature and the pyridine evaporated. The residue was partitioned into 1M NaOH and EtOAc, mixed and the EtOAc layer removed. The aqueous layer was extracted with EtOAc and combined EtOAc fractions were washed with H2O, saturated NaCl and dried over MgSO4. The solution was filtered and concentrated, and the resulting solid was washed with dry Et2O to afford the title compound as a white solid (7 mg, 29%). MS (apci) m/z=435.1 (M+H).

후처리

  1. temperaturethe mixture heated
  2. temperatureat reflux for 4 hours
  3. concentrationwas concentrated to a brittle foam
  4. dissolutionThe foam was dissolved in pyridine (2 mL)
  5. temperaturethe mixture was heated at 90° C. for 20 hours
  6. temperatureThe reaction was cooled to ambient temperature
  7. customthe pyridine evaporated
  8. customThe residue was partitioned into 1M NaOH and EtOAc
  9. additionmixed
  10. customthe EtOAc layer removed
  11. extractionThe aqueous layer was extracted with EtOAc and combined EtOAc fractions
  12. washwere washed with H2O, saturated NaCl
  13. dry with materialdried over MgSO4
  14. filtrationThe solution was filtered
  15. concentrationconcentrated
  16. washthe resulting solid was washed with dry Et2O

출처 및 근거

ORD 기록
ord-50ce0a64eee04716b2d3698f595dbd68
출처 데이터셋
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08791123B2

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