Piperidine → 5-(2-Diethylamino-ethyl)-2-(5-fluoro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-trifluoromethyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one

HRID 905884Notes

Reaction equation

HRID 905884 reaction equation
[CH2:1]([N:3]([CH2:22][CH3:23])[CH2:4][CH2:5][N:6]1[CH2:11][CH2:10][C:9]2[NH:12][C:13]([CH:19]=O)=[C:14]([C:15]([F:18])([F:17])[F:16])[C:8]=2[C:7]1=[O:21])[CH3:2].[F:24][C:25]1[CH:26]=[C:27]2[C:31](=[CH:32][CH:33]=1)[NH:30][C:29](=[O:34])[CH2:28]2.N1CCCCC1>C(O)C>[CH2:22]([N:3]([CH2:1][CH3:2])[CH2:4][CH2:5][N:6]1[CH2:11][CH2:10][C:9]2[NH:12][C:13]([CH:19]=[C:28]3[C:27]4[C:31](=[CH:32][CH:33]=[C:25]([F:24])[CH:26]=4)[NH:30][C:29]3=[O:34])=[C:14]([C:15]([F:16])([F:18])[F:17])[C:8]=2[C:7]1=[O:21])[CH3:23]

Participants

5

Reactant 3

HCID 8082PiperidineHCID 37310125-fluoro-1,3-dihydro-2H-indol-2-oneHCID 866376915-(2-diethylamino-ethyl)-3-trifluoromethyl-4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carbaldehyde

Product 1

HCID 666076735-(2-Diethylamino-ethyl)-2-(5-fluoro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-trifluoromethyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-oneYield 83.6%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A stirred solution of 5-(2-diethylamino-ethyl)-3-trifluoromethyl-4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carbaldehyde (40 mg, 0.121 mmol), 5-fluoro-1,3-dihydro-indol-2-one (18 mg, 0.12 mmol) in 0.4 ml of ethanol was added dropwise with anhydrous piperidine (0.1 ml). The mixture was stirred at room temperature overnight. The resulting solid was filtered under reduced pressure, washed with anhydrous ethanol (1 ml×3), purified by silica gel column chromatography with triethylamine:methanol:dichloromethane (1:20:500) as eluents to give 5-(2-diethylamino-ethyl)-2-(5-fluoro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-trifluoromethyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one (46 mg, 83.6%) as a yellow solid

Workup

  1. filtrationThe resulting solid was filtered under reduced pressure
  2. washwashed with anhydrous ethanol (1 ml×3)
  3. custompurified by silica gel column chromatography with triethylamine:methanol:dichloromethane (1:20:500) as eluents

Sources & evidence

ORD record
ord-9e81769a737a4cc28e32467d230b340a
Source dataset
uspto-grants-2011_09
Patent number
US08012966B2

Reaction notes

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