Piperidine → HCID 25114698, compound

HRID 2191443Notes

Reaction equation

HRID 2191443 reaction equation
[CH3:1][N:2]([CH3:19])[CH2:3][CH2:4][N:5]1[CH2:11][CH2:10][CH2:9][C:8]2[NH:12][C:13]([CH:16]=O)=[C:14]([CH3:15])[C:7]=2[C:6]1=[O:18].[Cl:20][C:21]1[CH:22]=[C:23]2[C:27](=[CH:28][CH:29]=1)[NH:26][C:25](=[O:30])[CH2:24]2.N1CCCCC1>CO>[Cl:20][C:21]1[CH:22]=[C:23]2[C:27](=[CH:28][CH:29]=1)[NH:26][C:25](=[O:30])/[C:24]/2=[CH:16]\[C:13]1[NH:12][C:8]2[CH2:9][CH2:10][CH2:11][N:5]([CH2:4][CH2:3][N:2]([CH3:19])[CH3:1])[C:6](=[O:18])[C:7]=2[C:14]=1[CH3:15]

Participants

5

Reactant 3

HCID 8082PiperidineHCID 1528015-ChlorooxindoleHCID 592500735-(2-Dimethylamino-ethyl)-3-methyl-4-oxo-1,4,5,6,7,8-hexahydro-pyrrolo[3,2-c]azepine-2-carbaldehyde

Product 1

HCID 25114698HCID 25114698, compoundYield 75.1%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

5-(2-Dimethylamino-ethyl)-3-methyl-4-oxo-1,4,5,6,7,8-hexahydro-pyrrolo[3,2-c]azepine-2-carbaldehyde 23c (53 mg, 0.2 mmol) was dissolved in 1 ml of methanol under stirring, and added with 5-chloro-1,3-dihydro-indol-2-one (34 mg, 0.2 mmol) and piperidine (0.1 ml) to the solution. Upon the completion of the addition, the mixture was stirred to mix well in dark, heated to reflux for 2 hours and lots of precipitate was formed. After thin lay chromatography showed the disappearance of starting materials, the reaction mixture was naturally cooled down to room temperature, and filtered. The filter cake was washed with ethanol and dried to obtain the title compound (Z)-2-(5-chloro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-dimethylamino-ethyl)-3-methyl-5,6,7,8-tetrahydro-1H-pyrrolo[3,2-c]azepin-4-one 23 (62 mg, yield 75%) as an orange powder.

Workup

  1. additionUpon the completion of the addition
  2. stirringthe mixture was stirred
  3. additionto mix well in dark,
  4. temperatureheated
  5. temperatureto reflux for 2 hours
  6. customlots of precipitate was formed
  7. filtrationfiltered
  8. washThe filter cake was washed with ethanol
  9. customdried

Sources & evidence

ORD record
ord-30c5bd345d9d465a9fd76c2c81b041d7
Source dataset
uspto-grants-2012_12
Patent number
US08329682B2

Reaction notes

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