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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 228533Generated: October 29, 2026

Water → HCID 57756359, compound

https://huagongshe.com/reaction/228533

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl 5-hydroxy-1H-indole-2-carboxylateHCID 90677—
Reactant4-Chloro-6,7-dimethoxyquinolineHCID 459610—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventO-XyleneHCID 7237—
ProductHCID 57756359HCID 5775635930.4%

Reaction Steps

4-Chloro-6,7-dimethoxyquinoline (362 mg), ethyl 5-hydroxy-1H-2-indolecarboxylate (277 mg), and 4-dimethylaminopyridine (195 mg) were suspended in o-xylene, and the suspension was heated under reflux overnight. The reaction solution was cooled to room temperature, water was then added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with saturated brine and was dried over anhydrous magnesium sulfate. The solvent was removed therefrom by distillation under the reduced pressure, and the residue was purified by column chromatography using ethyl acetate-hexane on silica gel to give the title compound (161 mg, yield 30%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560558B2
Source datasetuspto-grants-2009_07
ORD IDord-f385e284c5e54573a3b3343d24475ffb
Source noteuspto-grants-2009_07