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Pyridine → (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenethioamide

HRID 2221878
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HRID 2221878 반응식
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:36]=[CH:35][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26]([NH2:28])=O)=[CH:22][N:21]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)[N:20]=3)=[CH:15][C:14]=2[O:37][CH3:38])[N:10]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:49])=CC=1.N1C=CC=CC=1>O>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[O:7][C:8]([CH3:39])=[C:9]([CH2:11][O:12][C:13]2[CH:36]=[CH:35][C:16]([CH2:17][O:18][C:19]3[C:23](/[CH:24]=[CH:25]/[C:26](=[S:49])[NH2:28])=[CH:22][N:21]([C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)[N:20]=3)=[CH:15][C:14]=2[O:37][CH3:38])[N:10]=1
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참가 물질

5

반응물 3

HCID 1049PyridineHCID 87949Lawesson's reagentHCID 69216833(2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-4-oxazolyl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenamide

생성물 1

HCID 86605828(2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenethioamide수율 22%

시약·촉매·용매 1

HCID 962
Water
용매

실험 절차

A mixture of (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenamide (2.50 g), Lawesson's reagent (2.26 g) and pyridine (15 mL) was heated under reflux for 30 min. After concentration of the reaction mixture, water was added to the residue, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give (2E)-3-{3-[(4-{[2-(2-furyl)-5-methyl-1,3-oxazol-4-yl]methoxy}-3-methoxybenzyl)oxy]-1-phenyl-1H-pyrazol-4-yl}-2-propenethioamide as yellow crystals (0.56 g, yield 22%) from a fraction eluted with ethyl acetate-hexane (1:1, v/v). Recrystallization from ethyl acetate-diethyl ether gave yellow prism crystals. melting point: 129-131° C.

후처리

  1. temperaturewas heated
  2. temperatureunder reflux for 30 min
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated

출처 및 근거

ORD 기록
ord-0c15e4a27f98412c897d0044b7e4d2e2
출처 데이터셋
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07368578B2

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