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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 1477897
ノート
印刷プレビュー

反応式

HRID 1477897 の反応式
[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]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

4

反応物 2

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

生成物 1

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

試薬・触媒・溶媒 1

HCID 1049Pyridine溶媒

反応条件

温度
70 °C

実験手順

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]+.

後処理

  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

出典と根拠

ORDレコード
ord-438bf61867a84f73b8eae5203c13181e
出典データセット
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09403807B2

反応ノート

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