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Potassium Carbonate → 4-Fluoro-N-(2-{4-[2-(1H-indol-4-yl)-pyridin-3-yl]-piperazin-1-yl}-ethyl)-N-methyl-benzenesulfonamide hydrochloride

HRID 553516
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HRID 553516 반응식
[Cl:1][C:2]1[C:7]([N:8]2[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][N:16]([CH3:27])[S:17]([C:20]3[CH:25]=[CH:24][C:23]([F:26])=[CH:22][CH:21]=3)(=[O:19])=[O:18])[CH2:10][CH2:9]2)=[CH:6][CH:5]=[CH:4][N:3]=1.[NH:28]1[C:36]2[CH:35]=[CH:34][CH:33]=[C:32](B(O)O)[C:31]=2[CH:30]=[CH:29]1.C(=O)([O-])[O-].[K+].[K+].B(O)O>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>[ClH:1].[F:26][C:23]1[CH:24]=[CH:25][C:20]([S:17]([N:16]([CH2:15][CH2:14][N:11]2[CH2:12][CH2:13][N:8]([C:7]3[C:2]([C:32]4[CH:33]=[CH:34][CH:35]=[C:36]5[C:31]=4[CH:30]=[CH:29][NH:28]5)=[N:3][CH:4]=[CH:5][CH:6]=3)[CH2:9][CH2:10]2)[CH3:27])(=[O:19])=[O:18])=[CH:21][CH:22]=1
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7

반응물 4

HCID 11430Potassium CarbonateHCID 61668Boronic AcidHCID 27631731H-Indole-4-boronic acidHCID 86640209N-{2-[4-(2-Chloro-pyridin-3-yl)-piperazin-1-yl]-ethyl}-4-fluoro-N-methyl-benzenesulfonamide

생성물 1

HCID 673670934-Fluoro-N-(2-{4-[2-(1H-indol-4-yl)-pyridin-3-yl]-piperazin-1-yl}-ethyl)-N-methyl-benzenesulfonamide hydrochloride수율 15.1%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 80711,2-Dimethoxyethane용매

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온도
80 °C

실험 절차

Dissolve N-{2-[4-(2-chloro-pyridin-3-yl)-piperazin-1-yl]-ethyl}-4-fluoro-N-methyl-benzenesulfonamide (0.160 g, 0.387 mmol) in DME (5 mL, previously degassed with nitrogen). Add 4-indole boronic acid (0.094 g, 0.581 mmol), 2N aqueous potassium carbonate (0.464 mL, 0.129 g, 0.930 mmol), and tetrakis(triphenylphosphine)palladium (0.022 g, 0.022 mmol). Stir the reaction mixture at 80° C. for 18 hr. Add fresh catalyst (0.015 g) and boronic acid (0.050 g). Stir an additional 8 hr. at 95° C. Cool to room temperature and concentrate to remove DME. Dilute with ethyl acetate and brine. Extract the aqueous layer with ethyl acetate. Combine the organic layers, dry over sodium sulfate, filter, and concentrate. Purify the resulting material by silica gel chromatography eluting with dichloromethane:methanol 94:6 to 90:10 to afford the title compound (0.031 g).

후처리

  1. custompreviously degassed with nitrogen)
  2. stirringStir an additional 8 hr
  3. customat 95° C
  4. temperatureCool to room temperature
  5. concentrationconcentrate
  6. customto remove DME
  7. additionDilute with ethyl acetate and brine
  8. extractionExtract the aqueous layer with ethyl acetate
  9. dry with materialdry over sodium sulfate
  10. filtrationfilter
  11. concentrationconcentrate
  12. customPurify the resulting material by silica gel chromatography
  13. washeluting with dichloromethane:methanol 94:6 to 90:10

출처 및 근거

ORD 기록
ord-4bdadbb919334267b45f5d2714c15373
출처 데이터셋
uspto-grants-2011_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08048884B2

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