Hydrochloric Acid → 3-(2,3-dihydro-1H-indol-5-yl)-1-ethyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

HRID 587451

反応式

HRID 587451 の反応式
[CH2:1]([N:3]1[C:11]2[C:6](=[N:7][CH:8]=[CH:9][CH:10]=2)[N:5]([C:12]2[CH:13]=[C:14]3[C:18](=[CH:19][CH:20]=2)[N:17](C(OC(C)(C)C)=O)[CH2:16][CH2:15]3)[C:4]1=[O:28])[CH3:2].Cl>CCOC(C)=O>[NH:17]1[C:18]2[C:14](=[CH:13][C:12]([N:5]3[C:6]4=[N:7][CH:8]=[CH:9][CH:10]=[C:11]4[N:3]([CH2:1][CH3:2])[C:4]3=[O:28])=[CH:20][CH:19]=2)[CH2:15][CH2:16]1

参加物

4

反応条件

温度
50 °C

実験手順

To a stirred solution of tert-butyl 5-(1-ethyl-2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)-2,3-dihydro-1H-indole-1-carboxylate (100 mg) in EtOAc (2 mL) was added 4N HCl in AcOEt solution (2.0 mL). The mixture was stirred at 50° C. for 2 h and evaporated. The residue was treated with sat.NaHCO3aq. and extracted with AcOEt. The organic layer was dried over MgSO4 and concentrated in vacuo to give 3-(2,3-dihydro-1H-indol-5-yl)-1-ethyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one. This residue was used for the next reaction.

後処理

  1. customevaporated
  2. additionThe residue was treated with sat.NaHCO3aq
  3. extractionand extracted with AcOEt
  4. dry with materialThe organic layer was dried over MgSO4
  5. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-f6889a247d73488c9f49d3b72c9caf39
出典データセット
uspto-grants-2016_01
特許番号
US09226921B2

関連ノート

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