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Sodium Hydroxide → (R)-5-(2-(5-fluoro-2-methoxyphenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid

HRID 1631298
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HRID 1631298 반응식
Cl[C:2]1[CH:7]=[CH:6][N:5]2[N:8]=[CH:9][C:10]([C:11]([O:13]CC)=[O:12])=[C:4]2[N:3]=1.Cl.[F:17][C:18]1[CH:19]=[CH:20][C:21]([O:29][CH3:30])=[C:22]([C@H:24]2[CH2:28][CH2:27][CH2:26][NH:25]2)[CH:23]=1.C(N(C(C)C)CC)(C)C.[OH-].[Na+]>C(O)(C)C.CO>[F:17][C:18]1[CH:19]=[CH:20][C:21]([O:29][CH3:30])=[C:22]([C@H:24]2[CH2:28][CH2:27][CH2:26][N:25]2[C:2]2[CH:7]=[CH:6][N:5]3[N:8]=[CH:9][C:10]([C:11]([OH:13])=[O:12])=[C:4]3[N:3]=2)[CH:23]=1
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7

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HCID 14798Sodium HydroxideHCID 81531DiisopropylethylamineHCID 58063474Ethyl 5-chloropyrazolo(1,5-a)pyrimidine-3-carboxylateHCID 66519187(R)-2-(5-fluoro-2-methoxyphenyl)pyrrolidine hydrochloride

생성물 1

HCID 66847828(R)-5-(2-(5-fluoro-2-methoxyphenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid수율 32.2%

시약·촉매·용매 2

HCID 887Methanol용매HCID 3776Isopropanol용매

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온도
160 °C

실험 절차

In a sealed tube, ethyl 5-chloropyrazolo[1,5-a]pyrimidine-3-carboxylate (Preparation B, 500 mg, 2.22 mmol), (R)-2-(5-fluoro-2-methoxyphenyl)pyrrolidine hydrochloride salt (513 mg, 2.22 mmol), and diisopropylethylamine (0.774 mL, 4.43 mmol) were combined in isopropanol (2 mL) and heated at 160° C. for 3 days. 2N NaOH (6 mL) and MeOH (5 mL) were added and the reaction mixture stirred at ambient temperature for 24 hours, followed by heating to 40° C. for 3 hours. The reaction was partially concentrated, treated with saturated aqueous NH4Cl (10 mL) and the mixture extracted with EtOAc. The combined organic extracts were filtered, concentrated and the residue purified by reverse phase chromatography eluting with 0-60% acetonitrile/water to yield the title compound as a pink solid (254 mg, 32.2% yield). MS (apci) m/z=357.0 (M+H).

후처리

  1. temperatureby heating to 40° C. for 3 hours
  2. concentrationThe reaction was partially concentrated
  3. additiontreated with saturated aqueous NH4Cl (10 mL)
  4. extractionthe mixture extracted with EtOAc
  5. filtrationThe combined organic extracts were filtered
  6. concentrationconcentrated
  7. customthe residue purified by reverse phase chromatography
  8. washeluting with 0-60% acetonitrile/water

출처 및 근거

ORD 기록
ord-793fbbfcbde7495497ed75e320835a19
출처 데이터셋
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08791123B2

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