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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1163318Generated: October 29, 2026

Citric Acid → HCID 23111681, compound

https://huagongshe.com/reaction/1163318

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantEthanolHCID 702—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 58755267HCID 58755267—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 23111681HCID 2311168166%

Reaction Steps

To a solution of ethyl {5-[(4-{[(4-phenyl-1,3-thiazol-2-yl)(propyl)amino]methyl}benzyl)oxy]-2,3-dihydro-1H-inden-1-yl}acetate (0.684 g, 1.17 mmol) in a mixed solvent of ethanol (6 mL) and tetrahydrofuran (6 mL) was added 2 M aqueous sodium hydroxide solution (2 mL), and the mixture was stirred at room temperature for 24 hr. Water was added to the reaction mixture, and the mixture was neutralized with 10% aqueous citric acid solution and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (30%-80% ethyl acetate/hexane) and recrystallized from ethyl acetate-hexane to give the title compound (0.393 g, yield 66%) as colorless prism crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07820837B2
Source datasetuspto-grants-2010_10
ORD IDord-8fd1ae266cf1412ea06644bb53d1dcb1
Source noteuspto-grants-2010_10