1-(2-Methoxyphenyl)piperazine → 6-(3-(4-(2-methoxyphenyl)piperazin-1-yl)propoxy)-1H-indazole

HRID 1750159Notes

Reaction equation

HRID 1750159 reaction equation
ClC1C(Cl)=CC=CC=1C1[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][O:18][C:19]2[CH:27]=[C:26]3[C:22]([CH:23]=[N:24][NH:25]3)=[CH:21][CH:20]=2)[CH2:11][CH2:10]1.[Na+].[I-].[CH3:30][O:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=1[N:38]1CCNCC1.CCN(C(C)C)C(C)C>CC#N>[CH3:30][O:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=1[N:38]1[CH2:10][CH2:11][N:12]([CH2:15][CH2:16][CH2:17][O:18][C:19]2[CH:27]=[C:26]3[C:22]([CH:23]=[N:24][NH:25]3)=[CH:21][CH:20]=2)[CH2:13][CH2:14]1

Participants

6

Reactant 4

HCID 13461-(2-Methoxyphenyl)piperazineHCID 5238Sodium IodideHCID 81531DiisopropylethylamineHCID 666337746-(3-(4-(2,3-dichlorophenyl)piperidin-1-yl)propoxy)-1H-indazole

Product 1

HCID 565973626-(3-(4-(2-methoxyphenyl)piperazin-1-yl)propoxy)-1H-indazoleYield 60%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of intermediate 44 (42.2 mg, 0.17 mmol) and NaI (49.5 mg, 0.33 mmol) in CH3CN (3 mL) was heated to reflux for 30 min and then cooled to rt. To this mixture was added intermediate 65 (35.0 mg, 0.18 mmol), followed then by DIEA (0.063 mL, 0.36 mmol). The resulting mixture was heated to reflux and stirred for 4 h. Precipitated crystals were filtered off and the filtrate was evaporated under reduced pressure. The residue was extracted with EtOAc. The combined EtOAc layers were washed with brine, dried over anhydrous Na2SO4, concentrated in vacuo and purified by ISCO to give 6-(3-(4-(2-methoxyphenyl)piperazin-1-yl)propoxy)-1H-indazole (compound 50) (36.6 mg, 60%). HPLC: 99%, RT 3.907 min. MS (ESI) m/z 367.20 [M+H]+.

Workup

  1. temperaturewas heated
  2. temperatureto reflux for 30 min
  3. temperatureThe resulting mixture was heated
  4. temperatureto reflux
  5. customPrecipitated crystals
  6. filtrationwere filtered off
  7. customthe filtrate was evaporated under reduced pressure
  8. extractionThe residue was extracted with EtOAc
  9. washThe combined EtOAc layers were washed with brine
  10. dry with materialdried over anhydrous Na2SO4
  11. concentrationconcentrated in vacuo
  12. custompurified by ISCO

Sources & evidence

ORD record
ord-f5a039376e6f4efaab283a78da415533
Source dataset
uspto-grants-2015_10
Patent number
US09156822B2

Reaction notes

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