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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1937548Generated: October 31, 2026

Piperidine → HCID 54556580, compound

https://huagongshe.com/reaction/1937548

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant5-Iodoindolin-2-oneHCID 9838045—
Reactant3-(5-formyl-4-methyl-1H-pyrrol-3-yl)propanoic acidHCID 15160752—
SolventEthanolHCID 702—
ProductHCID 54556580HCID 5455658077.2%

Reaction Steps

4-(2-Carboxyethyl)-2-formyl-3-methylpyrrole (90 mg), 130 mg 5-iodo-2-oxindole, and 75 L piperidine in 2 mL ethanol were heated at 95° C. for 5 hours. The reaction mixture was cooled and concentrated. The residue was suspended in 2 N aqueous hydrochloric acid. The precipitate was filtered, washed with water to pH 6 and dried in a vacuum oven to give 162 mg (77%) of the title compound as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06395734B1
Source datasetuspto-grants-2002_05
ORD IDord-349eb70ee9384dd88dd92a3cbc856303
Source noteuspto-grants-2002_05