Ethanol → 4-(3-Benzyl-2-carbamoyl-5-methyl-benzofuran-7-yl)-piperazine-1-carboxylic acid tert-butyl ester

HRID 18185

반응식

HRID 18185 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[C:22]3[O:21][C:20]([C:23]#[N:24])=[C:19]([CH2:25][C:26]4[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=4)[C:18]=3[CH:17]=[C:16]([CH3:32])[CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].B1([O-])O[O:34]1.O.O.O.O.[Na+].C(O)C>[Cl-].[Na+].O.O>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][N:11]([C:14]2[C:22]3[O:21][C:20]([C:23](=[O:34])[NH2:24])=[C:19]([CH2:25][C:26]4[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=4)[C:18]=3[CH:17]=[C:16]([CH3:32])[CH:15]=2)[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

참가 물질

6

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온도
130 °C

실험 절차

4-(3-Benzyl-2-cyano-5-methyl-benzofuran-7-yl)-piperazine-1-carboxylic acid tert-butyl ester (0.302 gm, 0.7 mmol), sodium perborate tetrahydrate (0.43 gm, 2.8 mmol), ethanol (8 ml) and water (8 ml) were combined in a vial and heated in a microwave reactor to 130° C. for 10 minutes. The reaction mixture was cooled to room temperature, diluted with brine and water and extracted three times with ethyl acetate. The solution was dried over magnesium sulfate and purified by column chromatography (methanol/dichloromethane gradient) to give 4-(3-benzyl-2-carbamoyl-5-methyl-benzofuran-7-yl)-piperazine-1-carboxylic acid tert-butyl ester (0.25 gm, 80% yield).

후처리

  1. temperatureThe reaction mixture was cooled to room temperature
  2. extractionextracted three times with ethyl acetate
  3. dry with materialThe solution was dried over magnesium sulfate
  4. custompurified by column chromatography (methanol/dichloromethane gradient)

출처 및 근거

ORD 기록
ord-6e1cd638c39c4f80be55e1ba89a7d870
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07741326B2

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