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2-Amino-5-chloropyridine → (2S)-3-(2-(tert-butyldiphenylsilyloxy)ethoxy)-N-(5-chloropyridin-2-yl)-2-(1-(2,3-dichlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy)propanamide

HRID 1098048
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HRID 1098048 반응식
C[Al](C)C.[Cl:5][C:6]1[CH:7]=[CH:8][C:9]([NH2:12])=[N:10][CH:11]=1.[Si:13]([O:30][CH2:31][CH2:32][O:33][CH2:34][C@H:35]([O:40][C:41]1[N:46]=[CH:45][N:44]=[C:43]2[N:47]([C:50]3[CH:55]=[CH:54][CH:53]=[C:52]([Cl:56])[C:51]=3[Cl:57])[N:48]=[CH:49][C:42]=12)[C:36](OC)=[O:37])([C:26]([CH3:29])([CH3:28])[CH3:27])([C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>C1(C)C=CC=CC=1>[Si:13]([O:30][CH2:31][CH2:32][O:33][CH2:34][C@H:35]([O:40][C:41]1[N:46]=[CH:45][N:44]=[C:43]2[N:47]([C:50]3[CH:55]=[CH:54][CH:53]=[C:52]([Cl:56])[C:51]=3[Cl:57])[N:48]=[CH:49][C:42]=12)[C:36]([NH:12][C:9]1[CH:8]=[CH:7][C:6]([Cl:5])=[CH:11][N:10]=1)=[O:37])([C:26]([CH3:27])([CH3:28])[CH3:29])([C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 661742-Amino-5-chloropyridineHCID 16682925TrimethylaluminumHCID 59279524(2S)-Methyl 3-(2-(tert-butyldiphenylsilyloxy)ethoxy)-2-(1-(2,3-dichlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy)propanoate

생성물 1

HCID 57504550(2S)-3-(2-(tert-butyldiphenylsilyloxy)ethoxy)-N-(5-chloropyridin-2-yl)-2-(1-(2,3-dichlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy)propanamide수율 95%

시약·촉매·용매 1

HCID 1140Toluene용매2회

실험 절차

Trimethylaluminium (2M in toluene) (0.638 mL, 1.28 mmol) was added to 5-chloropyridin-2-amine (164 mg, 1.28 mmol) in toluene (2 mL) under nitrogen. The resulting solution was stirred at room temperature for 15 minutes. (2S)-Methyl 3-(2-(tert-butyldiphenylsilyloxy)ethoxy)-2-(1-(2,3-dichlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy)propanoate (Intermediate AR1) (425 mg, 0.64 mmol) in toluene (8 mL) was added sealed into a 20 mL microwave tube. The reaction was heated to 120° C. for 4 hours in the microwave reactor and cooled to RT. The reaction mixture was allowed to cool and concentrated in vacuo. The residue was neutralised with citric acid (1M, aq) and then diluted with water (30 mL) and extracted with EtOAc (2×50 mL). The combined organics were dried (MgSO4) and evaporated. The crude product was purified by flash silica chromatography, elution gradient 0 to 50% EtOAc in isohexane to afford (2S)-3-(2-(tert-butyldiphenylsilyloxy)ethoxy)-N-(5-chloropyridin-2-yl)-2-(1-(2,3-dichlorophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yloxy)propanamide (460 mg, 95%). m/z (ES+) (M+H)+=763; HPLC tR=3.94 min.

후처리

  1. customsealed into a 20 mL microwave tube
  2. temperatureThe reaction was heated to 120° C. for 4 hours in the microwave reactor
  3. temperaturecooled to RT
  4. temperatureto cool
  5. concentrationconcentrated in vacuo
  6. additiondiluted with water (30 mL)
  7. extractionextracted with EtOAc (2×50 mL)
  8. dry with materialThe combined organics were dried (MgSO4)
  9. customevaporated
  10. customThe crude product was purified by flash silica chromatography, elution gradient 0 to 50% EtOAc in isohexane

출처 및 근거

ORD 기록
ord-138b419f30664b6ea0320e1369cce961
출처 데이터셋
uspto-grants-2012_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08143263B2

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