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Hydrochloric Acid → 1-Benzyl-5-hydroxy-2-oxo-8-pyridin-3-yl-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

HRID 920073
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HRID 920073 반응식
[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:34])=[C:7]2[C:12](=[C:13](Br)[N:14]=1)[N:11]([CH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)[C:10](=[O:23])[C:9]([C:24]1[CH:29]=[CH:28][CH:27]=[C:26]([C:30]([F:33])([F:32])[F:31])[CH:25]=1)=[CH:8]2)=[O:4].C([Sn](CCCC)(CCCC)[C:40]1[CH:41]=[N:42][CH:43]=[CH:44][CH:45]=1)CCC.CCOC(C)=O.Cl>CN(C=O)C.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.O>[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:34])=[C:7]2[C:12](=[C:13]([C:40]3[CH:41]=[N:42][CH:43]=[CH:44][CH:45]=3)[N:14]=1)[N:11]([CH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1)[C:10](=[O:23])[C:9]([C:24]1[CH:29]=[CH:28][CH:27]=[C:26]([C:30]([F:33])([F:32])[F:31])[CH:25]=1)=[CH:8]2)=[O:4]
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참가 물질

8

반응물 4

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 34838483-(Tributylstannyl)pyridineHCID 867141831-Benzyl-8-bromo-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

생성물 1

HCID 682974461-Benzyl-5-hydroxy-2-oxo-8-pyridin-3-yl-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester
수율 39%

시약·촉매·용매 3

HCID 178418476HCID 178418476, 화합물촉매HCID 962Water용매HCID 6228Dimethylformamide용매

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온도
120 °C

실험 절차

A mixture of 1-benzyl-8-bromo-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (76 mg, 0.14 mmol), 3-tributylstannanyl-pyridine (0.070 mL, 0.21 mmol) and PdCl2(PPh3)2 (20 mg, 0.029 mmol) in 4 mL of DMF was heated at 120° C. for 2 h under nitrogen atmosphere. After the mixture was cooled to r.t., EtOAc and water were added. 1 M HCl was added until pH was about 3. The aqueous layer was extracted with additional EtOAc, and the combined organic layer was washed with water and brine, and dried over MgSO4. After evaporating the solvent in vacuo, the crude product was purified by silica gel chromatography (5-95% EtOAc/hexanes+1% AcOH) to give 29 mg of the title compound. MS: (+) m/z 532.30 (M+1).

후처리

  1. temperatureAfter the mixture was cooled to r.t.
  2. extractionThe aqueous layer was extracted with additional EtOAc
  3. washthe combined organic layer was washed with water and brine
  4. dry with materialdried over MgSO4
  5. customAfter evaporating the solvent in vacuo
  6. customthe crude product was purified by silica gel chromatography (5-95% EtOAc/hexanes+1% AcOH)

출처 및 근거

ORD 기록
ord-606c3c1c2bb04c14b1424f4e1753b682
출처 데이터셋
uspto-grants-2016_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09271970B2

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