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3-Pyridinylboronic acid → dimethyl 5-[4-amino-2-ethoxymethyl-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-1-yl]pentane-1-sulfonamide

HRID 9429
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HRID 9429 반응식
[CH3:1][C:2]([CH3:30])([S:26]([NH2:29])(=[O:28])=[O:27])[CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:19]2[C:18]3[CH:17]=[CH:16][C:15](Br)=[CH:14][C:13]=3[N:12]=[C:11]([NH2:21])[C:10]=2[N:9]=[C:8]1[CH2:22][O:23][CH2:24][CH3:25].[N:31]1[CH:36]=[CH:35][CH:34]=[C:33](B(O)O)[CH:32]=1>C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH3:1][C:2]([CH3:30])([S:26]([NH2:29])(=[O:28])=[O:27])[CH2:3][CH2:4][CH2:5][CH2:6][N:7]1[C:19]2[C:18]3[CH:17]=[CH:16][C:15]([C:33]4[CH:32]=[N:31][CH:36]=[CH:35][CH:34]=4)=[CH:14][C:13]=3[N:12]=[C:11]([NH2:21])[C:10]=2[N:9]=[C:8]1[CH2:22][O:23][CH2:24][CH3:25]
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참가 물질

4

반응물 2

HCID 27343783-Pyridinylboronic acid2회HCID 68819084Dimethyl 5-(4-amino-7-bromo-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)pentane-1-sulfonamide

생성물 1

HCID 68818764dimethyl 5-[4-amino-2-ethoxymethyl-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-1-yl]pentane-1-sulfonamide수율 34.2%

시약·촉매·용매 1

HCID 167845palladium(II) acetate촉매

실험 절차

Dimethyl 5-(4-amino-7-bromo-2-ethoxymethyl-1H-imidazo[4,5-c]quinolin-1-yl)pentane-1-sulfonamide (0.26 g, 0.53 mmol) and pyridine-3-boronic acid (0.78 g, 0.63 mmol) were coupled according to the method described in Part J of Example 1. The reaction was heated at 100° C. for 31 hours, at which time additional palladium acetate (0.002 equivalent) was added. Heating was resumed for 14 hours, and then additional pyridine-3-boronic acid (0.3 equivalent) was added. The reaction was heated for another 22 hours. The work-up procedure used in Part F of Examples 125–135 was followed. The crude product was purified twice by HPFC (eluting with chloroform:CMA in a gradient from 100:0 to 80:20) and then triturated with ethyl acetate and isolated by filtration. The product was finally recrystallized from isopropanol, isolated by filtration, and dried for eight hours under high vacuum at 100° C. to provide 0.090 g of dimethyl 5-[4-amino-2-ethoxymethyl-7-(pyridin-3-yl)-1H-imidazo[4,5-c]quinolin-1-yl]pentane-1-sulfonamide as a white powder, mp 159–160° C.

후처리

  1. additionwas added
  2. temperatureHeating
  3. temperatureThe reaction was heated for another 22 hours
  4. customThe crude product was purified twice by HPFC (
  5. washeluting with chloroform
  6. customCMA in a gradient from 100:0 to 80:20) and then triturated with ethyl acetate
  7. customisolated by filtration
  8. customThe product was finally recrystallized from isopropanol
  9. customisolated by filtration
  10. customdried for eight hours under high vacuum at 100° C.

출처 및 근거

ORD 기록
ord-0cf36a9b9fe846209e97efb76af17162
출처 데이터셋
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07091214B2

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