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Hydrochloric Acid → 1-Benzyl-5-hydroxy-2-oxo-3,8-diphenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

HRID 1410691
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HRID 1410691 반응식
[CH3:1][O:2][C:3]([C:5]1[C:6]([OH:30])=[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]=[CH:26][CH:25]=1)=[CH:8]2)=[O:4].[C:31]1([Sn](CCCC)(CCCC)CCCC)[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.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:30])=[C:7]2[C:12](=[C:13]([C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=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]=[CH:26][CH:25]=1)=[CH:8]2)=[O:4]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 4

HCID 313Hydrochloric AcidHCID 8857Ethyl AcetateHCID 607632TributylphenyltinHCID 867141061-Benzyl-8-bromo-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester

생성물 1

HCID 682974311-Benzyl-5-hydroxy-2-oxo-3,8-diphenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester수율 60.5%

시약·촉매·용매

3
HCID 178418476HCID 178418476, 화합물촉매HCID 6228Dimethylformamide용매HCID 57417360Sodium chloride; water용매

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온도
120 °C

실험 절차

A mixture of 1-benzyl-8-bromo-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methyl ester (115 mg, 0.25 mmol), phenyltributyltin (0.1 mL, 0.30 mmol) and PdCl2(PPh3)2 (35 mg, 0.05 mmol) in 5 mL of DMF was heated at 120° C. for 2 h under nitrogen atmosphere. After the mixture was cooled to r.t., EtOAc (50 mL) and brine (10 mL) were added. 1M HCl was added with stirring until pH was about 3. The aqueous layer was extracted with additional EtOAc, and the combined organic layer was washed with water and dried over MgSO4. After evaporating the solvent in vacuo, the crude product was chromatographed (0-50% EtOAc/hexanes) to give 70 mg of the title compound. MS: (+) m/z 463.13 (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
  4. dry with materialdried over MgSO4
  5. customAfter evaporating the solvent in vacuo
  6. customthe crude product was chromatographed (0-50% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-0184dce1d72f478880b6a12ae9270224
출처 데이터셋
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08921389B2

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