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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 24472Generated: October 29, 2026

Oxindole → 4-(2-Carboxyethyl)-3-methyl-5-(2-oxo-1,2-dihydroindol-3-ylidenemethyl)-1H-pyrrole-2-carboxylic Acid Ethyl Ester

https://huagongshe.com/reaction/24472

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxindoleHCID 321710—
Reactant3-[5-(Ethoxycarbonyl)-2-formyl-4-methyl-1H-pyrrol-3-yl]propanoic acidHCID 15270623—
Product4-(2-Carboxyethyl)-3-methyl-5-(2-oxo-1,2-dihydroindol-3-ylidenemethyl)-1H-pyrrole-2-carboxylic Acid Ethyl EsterHCID 5424613565%

Reaction Steps

Oxindole (0.25 g, 1.88 mmol) was condensed with 4-(2-carboxyethyl)-5-formyl-3-methyl-1H-pyrrole-2-carboxylic acid ethyl ester (0.5 g, 1.97 mmol) to give 0.45 g (65%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06855730B2
Source datasetuspto-grants-2005_02
ORD IDord-7fbf3ca133ee4f0a9cfe522806dc1e9e
Source noteuspto-grants-2005_02