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Benzyl Bromide → 2-(1-benzyl-6-chloro-1H-indazol-3-yl)-N-isopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide

HRID 246447
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HRID 246447 반응식
[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]3[N:12]=[C:13]4[C:19]([C:20]([NH:22][CH:23]([CH3:25])[CH3:24])=[O:21])=[CH:18][N:17]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:33])([CH3:32])[CH3:31])[C:14]4=[N:15][CH:16]=3)=[N:7][NH:8]2)=[CH:4][CH:3]=1.[H-].[Na+].[CH2:36](Br)[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1>CN(C=O)C.O>[CH2:36]([N:8]1[C:9]2[C:5](=[CH:4][CH:3]=[C:2]([Cl:1])[CH:10]=2)[C:6]([C:11]2[N:12]=[C:13]3[C:19]([C:20]([NH:22][CH:23]([CH3:25])[CH3:24])=[O:21])=[CH:18][N:17]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:31])([CH3:33])[CH3:32])[C:14]3=[N:15][CH:16]=2)=[N:7]1)[C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1
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참가 물질

6

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HCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 712803652-(6-chloro-1H-indazol-3-yl)-N-isopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide

생성물 1

HCID 712800812-(1-benzyl-6-chloro-1H-indazol-3-yl)-N-isopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide수율 61.1%

시약·촉매·용매 2

HCID 962
Water
용매
HCID 6228Dimethylformamide용매

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온도
0 °C

실험 절차

2-(6-Chloro-1H-indazol-3-yl)-N-isopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (120 mg, 247 μmol) was dissolved in DMF (1 mL) and cooled to 0° C. Sodium hydride (12.9 mg, 322 μmol) was added and the mixture was stirred for 30 min. Benzyl bromide (63.5 mg, 44.1 μL, 371 μmol) was added and the mixture was warmed to 20° C. After 15 h the mixture was diluted with water and extracted with ethyl acetate. The organic extracts were washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by chromatography (silica, 40 g Analogix column, 20-50% ethyl acetate in hexanes, 15 min gradient) to give 2-(1-benzyl-6-chloro-1H-indazol-3-yl)-N-isopropyl-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (87 mg, 151 μmol, 61.1%) as a pale yellow powder. 1H NMR (CDCl3) δ: 9.29 (s, 1H), 8.48 (d, J=8.7 Hz, 1H), 8.38 (s, 1H), 8.20 (d, J=7.9 Hz, 1H), 7.43 (d, J=1.5 Hz, 1H), 7.20-7.39 (m, 6H), 5.73 (s, 2H), 5.68 (s, 2H), 4.38-4.55 (m, 1H), 3.52-3.64 (m, 2H), 1.42 (d, J=6.4 Hz, 6H), 0.86-1.00 (m, 2H), −0.03 (s, 9H).

후처리

  1. temperaturethe mixture was warmed to 20° C
  2. extractionextracted with ethyl acetate
  3. washThe organic extracts were washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by chromatography (silica, 40 g Analogix column, 20-50% ethyl acetate in hexanes, 15 min gradient)

출처 및 근거

ORD 기록
ord-915b7cc0f59d4422b43fd04689c09cd6
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08658646B2

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