1,2-Dimethoxyethane → 1-Ethyl-3-[4-(3H-imidazo[4,5-b]pyridin-2-yloxy)phenyl]-1H-pyrazolo[4,3-b]pyridine

HRID 573294노트

반응식

HRID 573294 반응식
CC1(C)C(C)(C)OB([C:9]2[CH:32]=[CH:31][C:12]([O:13][C:14]3[N:22](COCC[Si](C)(C)C)[C:17]4=[N:18][CH:19]=[CH:20][CH:21]=[C:16]4[N:15]=3)=[CH:11][CH:10]=2)O1.Br[C:35]1[C:39]2=[N:40][CH:41]=[CH:42][CH:43]=[C:38]2[N:37]([CH2:44][CH3:45])[N:36]=1.C([O-])([O-])=O.[Na+].[Na+].COCCOC>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[CH2:44]([N:37]1[C:38]2[C:39](=[N:40][CH:41]=[CH:42][CH:43]=2)[C:35]([C:9]2[CH:10]=[CH:11][C:12]([O:13][C:14]3[NH:22][C:17]4=[N:18][CH:19]=[CH:20][CH:21]=[C:16]4[N:15]=3)=[CH:31][CH:32]=2)=[N:36]1)[CH3:45]

참가 물질

7

반응물 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 667278823-bromo-1-ethyl-1H-pyrazolo[4,3-b]pyridineHCID 866889692-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-3-{[2-(trimethylsilyl)ethoxy]methyl}-3H-imidazo[4,5-b]pyridine

생성물 1

HCID 1784630051-Ethyl-3-[4-(3H-imidazo[4,5-b]pyridin-2-yloxy)phenyl]-1H-pyrazolo[4,3-b]pyridine수율 118%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 962Water용매2회

실험 절차

A mixture of 2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-3-{[2-(trimethylsilyl)ethoxy]methyl}-3H-imidazo[4,5-b]pyridine (100 mg), 3-bromo-1-ethyl-1H-pyrazolo[4,3-b]pyridine (140 mg), Pd(PPh3)4 (7 mg), Na2CO3 (79 mg), DME (5 mL), and water (1 mL) was refluxed overnight under Ar atmosphere. The mixture was poured into water and extracted with AcOEt. The extract was washed with brine, dried over Na2SO4, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (AcOEt/hexane) and recrystallized from AcOEt/hexane to give the title compound (90 mg).

후처리

  1. temperaturewas refluxed overnight under Ar atmosphere
  2. extractionextracted with AcOEt
  3. washThe extract was washed with brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (AcOEt/hexane)
  7. customrecrystallized from AcOEt/hexane

출처 및 근거

ORD 기록
ord-1f9d26dfb62241e4bf0e2bf9d81ad895
출처 데이터셋
uspto-grants-2015_05
특허 번호
US09029536B2

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