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Water → (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-4-(4-dimethylaminophenylcarbonylmethyl)-2-(1H-indol-3-ylmethyl)piperazine

HRID 2288179
Notes
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Reaction equation

HRID 2288179 reaction equation
[F:1][C:2]([F:32])([F:31])[C:3]1[CH:4]=[C:5]([CH:24]=[C:25]([C:27]([F:30])([F:29])[F:28])[CH:26]=1)[C:6]([N:8]1[CH2:13][CH2:12][NH:11][CH2:10][C@H:9]1[CH2:14][C:15]1[C:23]2[C:18](=[CH:19][CH:20]=[CH:21][CH:22]=2)[NH:17][CH:16]=1)=[O:7].Br[CH2:34][C:35]([C:37]1[CH:42]=[CH:41][C:40]([N:43]([CH3:45])[CH3:44])=[CH:39][CH:38]=1)=[O:36].C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[F:30][C:27]([F:28])([F:29])[C:25]1[CH:24]=[C:5]([CH:4]=[C:3]([C:2]([F:1])([F:31])[F:32])[CH:26]=1)[C:6]([N:8]1[CH2:13][CH2:12][N:11]([CH2:34][C:35]([C:37]2[CH:42]=[CH:41][C:40]([N:43]([CH3:44])[CH3:45])=[CH:39][CH:38]=2)=[O:36])[CH2:10][C@H:9]1[CH2:14][C:15]1[C:23]2[C:18](=[CH:19][CH:20]=[CH:21][CH:22]=2)[NH:17][CH:16]=1)=[O:7]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 1422252-Bromo-1-(4-(dimethylamino)phenyl)ethanoneHCID 10972505(2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-(1H-indol-3-ylmethyl)piperazine

Product 1

HCID 54348260(2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-4-(4-dimethylaminophenylcarbonylmethyl)-2-(1H-indol-3-ylmethyl)piperazine
Yield 64%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-(1H-indol-3-ylmethyl)piperazine (0.3 g), 2-bromo-4'-dimethylaminoacetophenone (0.2 g) and potassium carbonate (0.16 g) in N,N-dimethylformamide (5 ml) was stirred at room temperature for 2 hours. The reaction mixture was poured into water (20 ml) and extracted with ethyl acetate. The organic layer was washed with water and dried over magnesium sulfate. After evaporation of the solvent, the resulting residue was purified by column chromatography on silica gel using toluene-ethyl acetate (2:1) as an eluent. Fractions containing objective compound were collected and evaporated under reduced pressure to give (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-4-(4-dimethylaminophenylcarbonylmethyl)-2-(1H-indol-3-ylmethyl)piperazine (0.26 g).

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialdried over magnesium sulfate
  4. customAfter evaporation of the solvent
  5. customthe resulting residue was purified by column chromatography on silica gel
  6. additionFractions containing objective compound
  7. customwere collected
  8. customevaporated under reduced pressure

Sources & evidence

ORD record
ord-a2db2fbd8f434ac5a242aeb6eb5f82d9
Source dataset
uspto-grants-2000_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06087357

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes