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 2365130Notes

Reaction equation

HRID 2365130 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-a8c6b2e3d496445fb4e7f6e6f81ab25d
Source dataset
uspto-grants-2014_04
Patent number
US08697692B2

Reaction notes

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