Piperidine → 5-{3-[4-(2-Diethylaminoethylcarbamoyl)-3,5-dimethyl-1H-pyrrol-2-ylmethylene]-2-oxo-2,3-dihydro-1H-indol-4-yl}-nicotinic Acid

HRID 1826797Notes

Reaction equation

[O:1]=[C:2]1[CH2:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][C:8]=2[C:11]2[CH:12]=[N:13][CH:14]=[C:15]([CH:19]=2)[C:16]([OH:18])=[O:17])[NH:3]1.[CH2:20]([N:22]([CH2:37][CH3:38])[CH2:23][CH2:24][NH:25][C:26]([C:28]1[C:32]([CH3:33])=[C:31]([CH:34]=O)[NH:30][C:29]=1[CH3:36])=[O:27])[CH3:21].N1CCCCC1>C(O)C>[CH2:37]([N:22]([CH2:20][CH3:21])[CH2:23][CH2:24][NH:25][C:26]([C:28]1[C:32]([CH3:33])=[C:31]([CH:34]=[C:10]2[C:9]3[C:4](=[CH:5][CH:6]=[CH:7][C:8]=3[C:11]3[CH:12]=[N:13][CH:14]=[C:15]([CH:19]=3)[C:16]([OH:18])=[O:17])[NH:3][C:2]2=[O:1])[NH:30][C:29]=1[CH3:36])=[O:27])[CH3:38]

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of 5-(2-oxo-2,3-dihydro-1H-indol-4-yl)-nicotinic acid (381 mg, 1.5 mmol), 5-formyl-2,4-dimethyl-1H-pyrrole-3-carboxylic acid (2-diethylaminoethyl)-amide (398 mg, 1.5 mmol) and piperidine (1 mL) in ethanol (5 mL) was heated in a sealed tube at 60° C. for 10 hours. The reaction was concentrated, the residue was dissolved in a mixture of water and methanol and then acidified with 1N HCl. The resulted precipitate was collected by vacuum filtration, washed with methanol and dried to give the title compound.

Workup

concentrationThe reaction was concentrated
dissolutionthe residue was dissolved in a mixture of water and methanol
filtrationThe resulted precipitate was collected by vacuum filtration
washwashed with methanol
customdried

Sources & evidence

ORD record: ord-08f930b4aa0a4ab1a825993014447ef3
Source dataset: uspto-grants-2006_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07053086B2

Reaction notes

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