Potassium Carbonate → 1-(3-(4-Chloro-phenyl)-1-[3-[4-(2-fluoro-phenyl)-piperazin-1-yl]-propyl]-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-5-yl)-ethanone

HRID 746926Notes

Reaction equation

HRID 746926 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]3[CH2:13][N:14]([C:17](=[O:19])[CH3:18])[CH2:15][CH2:16][C:11]=3[N:10]([CH2:20][CH2:21][CH2:22]Cl)[N:9]=2)=[CH:4][CH:3]=1.[F:24][C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=1[N:31]1[CH2:36][CH2:35][NH:34][CH2:33][CH2:32]1.C([O-])([O-])=O.[K+].[K+].CO.CCOC(C)=O>CC#N>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]3[CH2:13][N:14]([C:17](=[O:19])[CH3:18])[CH2:15][CH2:16][C:11]=3[N:10]([CH2:20][CH2:21][CH2:22][N:34]3[CH2:33][CH2:32][N:31]([C:26]4[CH:27]=[CH:28][CH:29]=[CH:30][C:25]=4[F:24])[CH2:36][CH2:35]3)[N:9]=2)=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 705291-(2-Fluorophenyl)piperazineHCID 179754181-[3-(4-Chloro-phenyl)-1-(3-chloro-propyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-5-yl]-ethanoneHCID 21584119Ethylacetate methanol

Product 1

HCID 102784041-(3-(4-Chloro-phenyl)-1-[3-[4-(2-fluoro-phenyl)-piperazin-1-yl]-propyl]-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-5-yl)-ethanoneYield 41%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent2×

Procedure

1-[3-(4-Chloro-phenyl)-1-(3-chloro-propyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-5-yl]-ethanone (0.053 g, 0.15 mmol) was dissolved in CH3CN (0.5 mL) and a solution of 1-(2-fluorophenyl)piperazine (0.053 g, 0.30 mmol) in CH3CN (0.5 mL) was added, followed by K2CO3 (0.031 g, 0.22 mmol) and Bu4Nl (0.018 g, 0.05 mmol). The mixture was stirred at room temperature for 7 d. Preparative TLC (silica, 5% MeOH/EtOAc) afforded 30 mg (41%) of the title compound. MS (electrospray): exact mass calculated for C27H31ClFN5O, 495.22; m/z found, 496.3 [M+H]+. 1H NMR (500 MHz, CDCl3, a mixture of 1:1 rotamers): 7.60 (d, J=8.3 Hz, 1H), 7.54 (d, J=8.3 Hz, 1H), 7.39 (d, J=8.3 Hz, 1H), 7.35 (d, J=8.3 Hz, 1H), 7.06-6.90 (m, 4H), 4.77 (s, 1H), 4.60 (s, 1H), 4.10 (t, J=6.8 Hz, 2H), 3.92 (t, J=5.7 Hz, 1H), 3.74 (t, J=5.7 Hz, 1H), 3.08 (br s, 4H), 2.83 (t, J=5.6 Hz, 1H), 2.77 (t, J=5.7 Hz, 1H), 2.58 (br s, 4H), 2.41-2.38 (m, 2H), 2.19 (s, 1.5H), 2.13 (s, 1.5H), 2.10-2.07 (m, 2H).

Sources & evidence

ORD record
ord-c56e4f6ab71442ae838063b3873d8baf
Source dataset
uspto-grants-2008_07
Patent number
US07393850B2

Reaction notes

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