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6-Fluoro-1H-indazole → N-tert-Butyl-2-(6-fluoro-1H-indazol-1-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide

HRID 246490
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HRID 246490 반응식
Br[C:2]1[N:3]=[C:4]2[C:10]([C:11]([NH:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])=[CH:9][N:8]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[C:5]2=[N:6][CH:7]=1.[F:26][C:27]1[CH:35]=[C:34]2[C:30]([CH:31]=[N:32][NH:33]2)=[CH:29][CH:28]=1.CC(C)([O-])C.[Na+]>O1CCOCC1.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C>[C:14]([NH:13][C:11]([C:10]1[C:4]2[C:5](=[N:6][CH:7]=[C:2]([N:33]3[C:34]4[C:30](=[CH:29][CH:28]=[C:27]([F:26])[CH:35]=4)[CH:31]=[N:32]3)[N:3]=2)[N:8]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[CH:9]=1)=[O:12])([CH3:17])([CH3:16])[CH3:15]
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참가 물질

6

반응물 3

HCID 178423506-Fluoro-1H-indazoleHCID 23676156Sodium t-butoxideHCID 715756452-bromo-N-(tert-butyl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide

생성물 1

HCID 71280153N-tert-Butyl-2-(6-fluoro-1H-indazol-1-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide

시약·촉매·용매 2

HCID 178418851
HCID 178418851, 화합물
촉매
HCID 312751,4-Dioxane용매

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온도
125 °C

실험 절차

To a stirred solution of 2-bromo-N-tert-butyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (140 mg, 328 μmol), 6-fluoro-1H-indazole (43.0 mg, 316 mmol) in dioxane (2 mL) was added sodium tert-butoxide (66.8 mg, 695 μmol) and bis(tri-tert-butylphosphine)palladium(0) (16.1 mg, 31.6 μmol). The mixture was degassed then heated in sealed tube at 125° C. for two days. The mixture was cooled, filtered through celite, the cake washed with ethyl acetate, and the combined filtrates were concentrated in vacuo. Purification by chromatography (silica, 24 g Analogix column, 0-40% ethyl acetate in hexanes) gave N-tert-Butyl-2-(6-fluoro-1H-indazol-1-yl)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide. 1H NMR (CDCl3) δ: 9.17 (s, 1H), 8.36 (s, 1H), 8.29 (dd, J=9.3, 2.3 Hz, 1H), 8.26 (d, J=1.0 Hz, 1H), 7.80 (dd, J=8.8, 5.0 Hz, 1H), 7.66 (s, 1H), 7.12 (td, J=8.9, 2.3 Hz, 1H), 5.72 (s, 2H), 3.54-3.63 (m, 2H), 1.62 (s, 9H), 0.90-1.00 (m, 2H), −0.03 (s, 9H).

후처리

  1. customThe mixture was degassed
  2. temperatureThe mixture was cooled
  3. filtrationfiltered through celite
  4. washthe cake washed with ethyl acetate
  5. concentrationthe combined filtrates were concentrated in vacuo
  6. customPurification by chromatography (silica, 24 g Analogix column, 0-40% ethyl acetate in hexanes)

출처 및 근거

ORD 기록
ord-87a2214514804074831f4f542ed50fa4
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08658646B2

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