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N-bromobutanimide → 1-Benzyl-8-bromo-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

HRID 920072
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인쇄 미리보기

반응식

HRID 920072 반응식
[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:33])=[C:7]2[C:12](=[CH:13][N:14]=1)[N:11]([CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1)[C:10](=[O:22])[C:9]([C:23]1[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[CH:24]=1)=[CH:8]2)=[O:4].[Br:34]N1C(=O)CCC1=O>C(Cl)Cl>[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:33])=[C:7]2[C:12](=[C:13]([Br:34])[N:14]=1)[N:11]([CH2:15][C:16]1[CH:17]=[CH:18][CH:19]=[CH:20][CH:21]=1)[C:10](=[O:22])[C:9]([C:23]1[CH:28]=[CH:27][CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[CH:24]=1)=[CH:8]2)=[O:4]
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참가 물질

4

반응물 2

HCID 67184N-bromobutanimideHCID 682972811-Benzyl-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

생성물 1

HCID 867141831-Benzyl-8-bromo-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester수율 57%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A mixture of 1-benzyl-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (115 mg, 0.25 mmol) and N-bromosuccinimide (50 mg, 0.28 mmol) in CH2Cl2 (1 mL) was refluxed for 3 h. Solvent was evaporated in vacuo, and the residue was purified by silica gel chromatography (5-20% EtOAc/hexanes+1% AcOH) to give 76 mg of the title compound as a yellow solid. MS: (−) m/z 531.17, 533.12 (M-1, 79/81Br).

후처리

  1. temperaturewas refluxed for 3 h
  2. customSolvent was evaporated in vacuo
  3. customthe residue was purified by silica gel chromatography (5-20% EtOAc/hexanes+1% AcOH)

출처 및 근거

ORD 기록
ord-b6808416eb6843e7b448faa36ecaf92b
출처 데이터셋
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09271970B2

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