Piperidine → 2-Methyl-4-[3-(4-methylpiperazin-1-yl)propyl]-5-(2-oxo-4-pyridin-3-yl-1,2-dihydroindol-3-ylidenemethyl)-1H-pyrrole-3-carboxylic Acid Ethyl Ester

HRID 988211Notes

Reaction equation

[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([C:7]2[CH:15]=[CH:14][CH:13]=[C:12]3[C:8]=2[CH2:9][C:10](=[O:16])[NH:11]3)[CH:2]=1.[CH2:17]([O:19][C:20]([C:22]1[C:26]([CH2:27][CH2:28][CH2:29][N:30]2[CH2:35][CH2:34][N:33]([CH3:36])[CH2:32][CH2:31]2)=[C:25]([CH:37]=O)[NH:24][C:23]=1[CH3:39])=[O:21])[CH3:18].N1CCCCC1>C(O)C>[CH2:17]([O:19][C:20]([C:22]1[C:26]([CH2:27][CH2:28][CH2:29][N:30]2[CH2:35][CH2:34][N:33]([CH3:36])[CH2:32][CH2:31]2)=[C:25]([CH:37]=[C:9]2[C:8]3[C:12](=[CH:13][CH:14]=[CH:15][C:7]=3[C:3]3[CH:2]=[N:1][CH:6]=[CH:5][CH:4]=3)[NH:11][C:10]2=[O:16])[NH:24][C:23]=1[CH3:39])=[O:21])[CH3:18]

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 4-pyridin-3-yl-1,3-dihydroindol-2-one (42 mg, 0.2 mmol), 5-formyl-2-methyl-4-[3-(4-methylpiperazin-1-yl)-propyl]-1H-pyrrole-3-carboxylic acid ethyl ester (64 mg, 0.2 mmol) and piperidine (0.1 mL) in ethanol was heated in a sealed tube at 70° C. for 5 hours. The reaction was concentrated and the residue was purified by column chromatography to give the title compound.

Workup

concentrationThe reaction was concentrated
customthe residue was purified by column chromatography

Sources & evidence

ORD record: ord-9fe7ab9bae3444589a3e8653bb00730e
Source dataset: uspto-grants-2003_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06635640B2

Reaction notes

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