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Ethyl Acetate → 6-{1-[6-(1-Methyl-1H-pyrazol-4-yl)-imidazo[1,2-b]pyridazin-3-yl]-vinyl}-quinoline

HRID 69198
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HRID 69198 반응식
Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([C:11]([C:13]3[CH:14]=[C:15]4[C:20](=[CH:21][CH:22]=3)[N:19]=[CH:18][CH:17]=[CH:16]4)=[CH2:12])=[CH:9][N:10]=2)[N:7]=1.[CH3:23][N:24]1[CH:28]=[C:27](B2OC(C)(C)C(C)(C)O2)[CH:26]=[N:25]1.C([O-])([O-])=O.[K+].[K+].CCOC(C)=O>COCCOC.[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>[CH3:23][N:24]1[CH:28]=[C:27]([C:2]2[CH:3]=[CH:4][C:5]3[N:6]([C:8]([C:11]([C:13]4[CH:14]=[C:15]5[C:20](=[CH:21][CH:22]=4)[N:19]=[CH:18][CH:17]=[CH:16]5)=[CH2:12])=[CH:9][N:10]=3)[N:7]=2)[CH:26]=[N:25]1
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참가 물질

8

반응물 4

HCID 8857Ethyl AcetateHCID 11430Potassium CarbonateHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 579174536-[1-(6-Chloro-imidazo[1,2-b]pyridazin-3-yl)-vinyl]-quinoline

생성물 1

HCID 579174486-{1-[6-(1-Methyl-1H-pyrazol-4-yl)-imidazo[1,2-b]pyridazin-3-yl]-vinyl}-quinoline

시약·촉매·용매 3

HCID 178418476
HCID 178418476, 화합물
촉매
HCID 80711,2-Dimethoxyethane용매
HCID 57417360Sodium chloride; water용매

반응 조건

온도
90 °C

실험 절차

6-[1-(6-Chloro-imidazo[1,2-b]pyridazin-3-yl)-vinyl]-quinoline (Example 154, 2.5 g, 8.15 mmol) was dissolved in DME (20 mL) under argon atm. 1-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (2.54 g, 12.22 mmol) was added, followed by 2 M K2CO3 (11 mL) and PdCl2(PPh3)2 (172 mg). The RM was stirred at 90° C. for 3 h. It was then taken into a mixture of EtOAc and brine and extracted. Organic phase was dried on Na2SO4. After evaporation of the solvent the crude was purified by column chromatography in silica gel with the eluent EtOAc/MeOH=9:1 then 4:1. The collected fractions containing product were concentrated and recrystallized from EtOAc/pentane. After a night drying under vacuo, the title compound was obtained as a beige powder (tR 3.65 min (conditions 3), MH+=353).

후처리

  1. extractionextracted
  2. customOrganic phase was dried on Na2SO4
  3. customAfter evaporation of the solvent the crude
  4. customwas purified by column chromatography in silica gel with the eluent EtOAc/MeOH=9:1
  5. additionThe collected fractions containing product
  6. concentrationwere concentrated
  7. customrecrystallized from EtOAc/pentane
  8. customAfter a night drying under vacuo

출처 및 근거

ORD 기록
ord-55d07577f2064f2e856a89e5cdb9b2fe
출처 데이터셋
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08822468B2

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