Sodium hydride → tert-butyl 7-bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate

HRID 1020653노트

반응식

HRID 1020653 반응식
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[C:6]3[CH2:14][N:13]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:12][CH2:11][C:7]=3[NH:8][C:9]=2[CH:10]=1.[H-].[Na+].[CH3:24][Si:25]([CH2:28][CH2:29][O:30][CH2:31]Cl)([CH3:27])[CH3:26]>CN(C=O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[C:6]3[CH2:14][N:13]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:12][CH2:11][C:7]=3[N:8]([CH2:31][O:30][CH2:29][CH2:28][Si:25]([CH3:27])([CH3:26])[CH3:24])[C:9]=2[CH:10]=1

참가 물질

5

반응물 3

HCID 24758Sodium hydrideHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 57950374tert-butyl 7-bromo-1,3,4,5-tetrahydro-2H-pyrido[4,3-b]indole-2-carboxylate

생성물 1

HCID 68658007tert-butyl 7-bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of tert-butyl 7-bromo-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (0.66 g, 1.9 mmol) in DMF (8 mL) was added NaH (60% weight dispersion in mineral oil, 113 mg, 2.82 mmol) followed by SEMCl (0.50 mL, 2.8 mmol). The reaction was stirred at room temperature until complete. The reaction was quenched with H2O, and the aqueous mixture was extracted with CH2Cl2. The organic phase was washed with H2O and brine and dried over Na2SO4. After filtration and concentration, the residue was dried under vacuum to give tert-butyl 7-bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate, which and used directly in the next step. To a mixture of tert-butyl 7-bromo-5-((2-(trimethylsilyl)ethoxy)methyl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (0.75 g, 1.6 mmol), 4-benzyloxypyridone (0.31 g, 1.6 mmol), 8-hydroxyquilinine (34 mg, 0.23 mmol), K2CO3 (0.26 g, 1.9 mmol) and CuI (45 mg, 0.23 mmol) was added DMSO (6 mL). The reaction mixture was degassed and back-filled with N2. The reaction was stirred at 130° C. overnight. The mixture was cooled and filtered through a layer of Celite. The filtrate was diluted with CH2Cl2, washed with H2O and 5% aqueous LiCl and dried over Na2SO4. The organic solution was filtered and concentrated, and the residue was purified by flash column chromatography (silica gel, 5% CH3OH in CH2Cl2) to give the title compound as a yellow oil (0.12 g, 13%): 1H NMR (500 MHz, CDCl3) δ 7.60 (d, J=8.5 Hz, 1H), 7.44-7.37 (m, 6H), 7.31 (d, J=7.5 Hz, 1H), 7.09 (m, 1H), 6.12 (s, 1H), 6.07 (d, J=6.5 Hz, 1H), 5.40 (s, 2H), 5.07 (s, 2H), 4.65 (m, 2H), 3.86 (m, 2H), 3.51 (t, J=8.0 Hz, 2H), 2.73 (m, 2H), 1.53 (s, 9H), 0.89 (t, J=8.0 Hz, 2H), −0.04 (s, 9H); ESI MS m/z 602 [M+H]+.

후처리

  1. customThe reaction was quenched with H2O
  2. extractionthe aqueous mixture was extracted with CH2Cl2
  3. washThe organic phase was washed with H2O and brine
  4. dry with materialdried over Na2SO4
  5. filtrationAfter filtration and concentration
  6. customthe residue was dried under vacuum

출처 및 근거

ORD 기록
ord-4e76baf97c4346c4a08e04dad116c441
출처 데이터셋
uspto-grants-2014_05
특허 번호
US08716308B2

반응 노트

불러오는 중…