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Phosphorus oxychloride → ethyl 5-(1-(4-((tert-butoxycarbonyl)amino)-1H-indazol-1-yl)-1-(4-chlorophenyl)propyl)-1,2,4-oxadiazole-3-carboxylate

HRID 1427273
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HRID 1427273 반응식
[NH2:1][C:2](=[N:8][O:9][C:10](=O)[C:11]([N:21]1[C:29]2[C:24](=[C:25]([NH:30][C:31]([O:33][C:34]([CH3:37])([CH3:36])[CH3:35])=[O:32])[CH:26]=[CH:27][CH:28]=2)[CH:23]=[N:22]1)([C:14]1[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][CH:15]=1)[CH2:12][CH3:13])[C:3]([O:5][CH2:6][CH3:7])=[O:4].P(Cl)(Cl)(Cl)=O>N1C=CC=CC=1>[C:34]([O:33][C:31]([NH:30][C:25]1[CH:26]=[CH:27][CH:28]=[C:29]2[C:24]=1[CH:23]=[N:22][N:21]2[C:11]([C:10]1[O:9][N:8]=[C:2]([C:3]([O:5][CH2:6][CH3:7])=[O:4])[N:1]=1)([C:14]1[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][CH:15]=1)[CH2:12][CH3:13])=[O:32])([CH3:37])([CH3:36])[CH3:35]
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참가 물질

4

반응물 2

HCID 24813Phosphorus oxychlorideHCID 86705053ethyl 2-amino-2-(((2-(4-((tert-butoxycarbonyl)amino)-1H-indazol-1-yl)-2-(4-chlorophenyl)butanoyl)oxy)imino)acetate

생성물 1

HCID 68175868ethyl 5-(1-(4-((tert-butoxycarbonyl)amino)-1H-indazol-1-yl)-1-(4-chlorophenyl)propyl)-1,2,4-oxadiazole-3-carboxylate

시약·촉매·용매 1

HCID 1049Pyridine용매

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온도
70 °C

실험 절차

To a solution of the product from Step B above (0.18 g, 0.33 mmol) in pyridine (9.0 mL) was added phosphorus oxychloride (0.25 g, 1.65 mmol). The mixture was heated at 70° C. for 7 hours, and stirred at 35° C. overnight, then concentrated to dryness under reduced pressure. The residue was dissolved in EtOAc and washed with saturated NaHCO3, water and brine. The organic layer was separated and dried over Na2SO4. The crude product was purified on a silica gel column using a gradient of 0-50% ethyl acetate in hexanes to give the title compound as light brown solid. LC/MS m/z=526.1[M+H]+.

후처리

  1. concentrationconcentrated to dryness under reduced pressure
  2. dissolutionThe residue was dissolved in EtOAc
  3. washwashed with saturated NaHCO3, water and brine
  4. customThe organic layer was separated
  5. dry with materialdried over Na2SO4
  6. customThe crude product was purified on a silica gel column

출처 및 근거

ORD 기록
ord-715bcfc4f05a4332916cbbedd23a61d1
출처 데이터셋
uspto-grants-2015_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08933113B2

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