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

HRID 1811326Notes

Reaction equation

HRID 1811326 reaction equation
[CH3:1][N:2]([CH3:18])[CH2:3][CH2:4][N:5]1[CH2:10][CH2:9][C:8]2[NH:11][C:12]([CH:15]=O)=[C:13]([CH3:14])[C:7]=2[C:6]1=[O:17].[F:19][C:20]1[CH:21]=[C:22]2[C:26](=[CH:27][CH:28]=1)[NH:25][C:24](=[O:29])[CH2:23]2.N1CCCCC1>C(O)C>[CH3:1][N:2]([CH3:18])[CH2:3][CH2:4][N:5]1[CH2:10][CH2:9][C:8]2[NH:11][C:12]([CH:15]=[C:23]3[C:22]4[C:26](=[CH:27][CH:28]=[C:20]([F:19])[CH:21]=4)[NH:25][C:24]3=[O:29])=[C:13]([CH3:14])[C:7]=2[C:6]1=[O:17]

Participants

5

Reactant 3

HCID 8082PiperidineHCID 37310125-fluoro-1,3-dihydro-2H-indol-2-oneHCID 866376895-(2-dimethylamino-ethyl)-3-methyl-4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carbaldehyde

Product 1

HCID 666076265-(2-Dimethylamino-ethyl)-2-(5-fluoro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-oneYield 58.8%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A stirred solution of 5-(2-dimethylamino-ethyl)-3-methyl-4-oxo-4,5,6,7-tetrahydro-1H-pyrrolo[3,2-c]pyridine-2-carbaldehyde (67 mg, 0.267 mmol), 5-fluoro-1,3-dihydro-indol-2-one (40 mg, 0.267 mmol) in 0.66 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 ethanol (1 ml×3) and purified by silica gel column chromatography with triethylamine:methanol:dichloromethane (1:20:500) as eluents to give 5-(2-dimethylamino-ethyl)-2-(5-fluoro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one (60 mg, 54.8%) as a yellow solid.

Workup

  1. filtrationThe resulting solid was filtered under reduced pressure
  2. washwashed with 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-d0377e0c98394733bfa6ddaa86f91e40
Source dataset
uspto-grants-2013_01
Patent number
US08362251B2

Reaction notes

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