Ethyl Acetate → tert-butyl ((2S)-1-((2-(4-(benzyloxy)phenyl) [1,3]oxazolo[4,5-c]pyridin-6-yl)oxy)propan-2-yl)carbamate

HRID 2277248ノート

反応式

HRID 2277248 の反応式
[CH2:1]([O:8][C:9]1[CH:36]=[CH:35][C:12]([C:13]([NH:15][C:16]2[C:17](Cl)=[CH:18][C:19]([O:22][CH2:23][C@@H:24]([NH:26][C:27](=[O:33])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30])[CH3:25])=[N:20][CH:21]=2)=[O:14])=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].C(OCC)(=O)C>CN(C=O)C.[Cu]I>[CH2:1]([O:8][C:9]1[CH:36]=[CH:35][C:12]([C:13]2[O:14][C:17]3[CH:18]=[C:19]([O:22][CH2:23][C@@H:24]([NH:26][C:27](=[O:33])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30])[CH3:25])[N:20]=[CH:21][C:16]=3[N:15]=2)=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

6

反応物 3

HCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 86731322tert-butyl ((2S)-1-((5-((4-(benzyloxy)benzoyl)amino)-4-chloropyridin-2-yl)oxy)propan-2-yl)carbamate

生成物 1

HCID 86731321tert-butyl ((2S)-1-((2-(4-(benzyloxy)phenyl) [1,3]oxazolo[4,5-c]pyridin-6-yl)oxy)propan-2-yl)carbamate収率 35.7%

試薬・触媒・溶媒 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
160 °C

実験手順

A suspension of tert-butyl ((2S)-1-((5-((4-(benzyloxy)benzoyl)amino)-4-chloropyridin-2-yl)oxy)propan-2-yl)carbamate (2.50 g), potassium carbonate (1.35 g) and copper(I) iodide (93.9 mg) in DMF (20 mL) was stirred at 160° C. for 3.5 hr. The reaction mixture was subjected to silica gel chromatography (NH, ethyl acetate), washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated, and the obtained solid was washed with ethyl acetate/hexane to give the title compound (830 mg).

後処理

  1. washwashed with saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. customThe solvent was evaporated
  4. washthe obtained solid was washed with ethyl acetate/hexane

出典と根拠

ORDレコード
ord-ce181cad8c294b9ba999ee9c450d9795
出典データセット
uspto-grants-2015_09
特許番号
US09133129B2

反応ノート

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