3-Pentanamine → Ethyl 7-[(1-ethylpropyl)amino]-3-mesityl-2,5-dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylate

HRID 966038노트

반응식

HRID 966038 반응식
[NH2:1][CH:2]([CH2:5][CH3:6])[CH2:3][CH3:4].Cl[C:8]1[N:13]2[N:14]=[C:15]([CH3:26])[C:16]([C:17]3[C:22]([CH3:23])=[CH:21][C:20]([CH3:24])=[CH:19][C:18]=3[CH3:25])=[C:12]2[N:11]=[C:10]([CH3:27])[C:9]=1[C:28]([O:30][CH2:31][CH3:32])=[O:29]>C(#N)C>[CH2:3]([CH:2]([NH:1][C:8]1[N:13]2[N:14]=[C:15]([CH3:26])[C:16]([C:17]3[C:22]([CH3:23])=[CH:21][C:20]([CH3:24])=[CH:19][C:18]=3[CH3:25])=[C:12]2[N:11]=[C:10]([CH3:27])[C:9]=1[C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH2:5][CH3:6])[CH3:4]

참가 물질

4

반응물 2

HCID 120193-PentanamineHCID 22249592Ethyl 7-chloro-3mesityl-2,5-dimethylpyrazolo[1,5-a]pyrimidin-6-carboxylate

생성물 1

HCID 22249551Ethyl 7-[(1-ethylpropyl)amino]-3-mesityl-2,5-dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylate

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

3-Aminopentane (5 mL) was added to a solution of ethyl 7-chloro-3-mesityl-2,5-dimethylpyrazolo[1,5-a]pyrimidin-6-carboxylate (1.94 g, 5.22 mmol) in acetonitrile (20 mL), followed by heating under reflux for eight hours. The mixture was extracted with ethyl acetate, and the organic layer was washed with brine, dried over anhydrous magnesium sulfate and evaporated. The residue was purified by silica gel column chromatography (20% ethyl acetate/hexane), to give the title compound (1.70 g).

후처리

  1. temperatureby heating
  2. temperatureunder reflux for eight hours
  3. extractionThe mixture was extracted with ethyl acetate
  4. washthe organic layer was washed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customevaporated
  7. customThe residue was purified by silica gel column chromatography (20% ethyl acetate/hexane)

출처 및 근거

ORD 기록
ord-0f17c96e9a3b44029dce3fa2d059cbb9
출처 데이터셋
uspto-grants-2005_10
특허 번호
US06951865B2

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