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Dimethylamine → (R)-N1-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-N2,N2-dimethyloxalamide

HRID 64033
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HRID 64033 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]([NH2:23])=[C:16]2[N:15]=1.Cl[C:25](=[O:30])[C:26](OC)=[O:27].C[CH2:32][N:33](C(C)C)[CH:34](C)C.CNC>C(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]([NH:23][C:25](=[O:30])[C:26]([N:33]([CH3:34])[CH3:32])=[O:27])=[C:16]2[N:15]=1
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HCID 674DimethylamineHCID 79846Methyl chloroglyoxylateHCID 81531DiisopropylethylamineHCID 58386314(R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine

생성물 1

HCID 58386298(R)-N1-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-N2,N2-dimethyloxalamide수율 73%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a DCM (1 mL) solution of (R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine (Preparation B; 50 mg, 0.16 mmol) was drop-wise added methyl 2-chloro-2-oxoacetate (19.4 mg, 0.159 mmol), followed by DIEA (0.0829 mL, 0.476 mmol). After the mild exothermal subsided and the reaction cooled back to ambient temperature, dimethylamine (0.8 mL, 1.6 mmol) [2M, THF] was added. The reaction was heated to gentle reflux for a few minutes, allowed to cool back to ambient temperature and stirred for 1 hour to reach completion. The reaction was concentrated and directly purified by reverse phase column chromatography, eluting with 5 to 60% acetonitrile/water to yield the final product as a pale-yellowish solid (48 mg, 73% yield). MS (apci) m/z=415.1 (M+H).

후처리

  1. temperatureThe reaction was heated
  2. temperatureto gentle reflux for a few minutes
  3. temperatureto cool back to ambient temperature
  4. concentrationThe reaction was concentrated
  5. customdirectly purified by reverse phase column chromatography
  6. washeluting with 5 to 60% acetonitrile/water

출처 및 근거

ORD 기록
ord-d42e2109b1a94fb8a69fff61596accce
출처 데이터셋
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09447104B2

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