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

HRID 919909
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HRID 919909 반응식
[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:24])=[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](Br)=[CH:8]2)=[O:4].C([Sn](CCCC)(CCCC)[C:30]1[CH:35]=[CH:34][CH:33]=[C:32]([C:36]([F:39])([F:38])[F:37])[CH:31]=1)CCC.CCOC(C)=O.Cl>CN(C=O)C.[Cl-].[Na+].O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:24])=[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:30]1[CH:35]=[CH:34][CH:33]=[C:32]([C:36]([F:39])([F:38])[F:37])[CH:31]=1)=[CH:8]2)=[O:4]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 4

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 2777910Tributyl(3-(trifluoromethyl)phenyl)stannaneHCID 682974771-Benzyl-3-bromo-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

생성물 1

HCID 682972811-Benzyl-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester수율 57.6%

시약·촉매·용매 3

HCID 178418476HCID 178418476, 화합물촉매HCID 6228Dimethylformamide용매HCID 57417360Sodium chloride; water용매

반응 조건

온도
120 °C

실험 절차

A mixture of 1-benzyl-3-bromo-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (80 mg, 0.21 mmol), tributyl-(3-trifluoromethyl-phenyl)-stannane (134 mg, 0.31 mmol), and PdCl2(PPh3)2 (29 mg, 0.041 mmol) in DMF (5 mL) was heated at 120° C. under nitrogen atmosphere for 2 h. After the mixture was cooled to r.t., brine and EtOAc were added. 1 M HCl was added until pH was about 3. The aqueous layer was extracted with additional EtOAc, and the organic layers were combined, washed with water, and dried over MgSO4. After evaporating the solvent, the crude product was purified by silica gel chromatography (0-60% EtOAc/hexanes+2% AcOH) to give 55 mg of the title compound. MS: (+) m/z 455.28 (M+1).

후처리

  1. temperatureAfter the mixture was cooled to r.t.
  2. extractionThe aqueous layer was extracted with additional EtOAc
  3. washwashed with water
  4. dry with materialdried over MgSO4
  5. customAfter evaporating the solvent
  6. customthe crude product was purified by silica gel chromatography (0-60% EtOAc/hexanes+2% AcOH)

출처 및 근거

ORD 기록
ord-1f4a195487ce469e903652467f922168
출처 데이터셋
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09271970B2

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