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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 549643Generated: October 28, 2026

Citric Acid → HCID 16035210, compound

https://huagongshe.com/reaction/549643

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67170760HCID 67170760—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
ProductHCID 16035210HCID 16035210—

Reaction Steps

{2-Methyl-4-[3-phenylethynyl-5-(5-trifluoromethyl-pyridin-2-yloxy)phenylsulfanyl]-phenoxy}-acetic acid ethyl ester (150 mg; 0.266 mmol) was dissolved in THF (2 mL) and ethanol (4 mL), and aqueous 1 N sodium hydroxide (3 mL) was added. The reaction mixture was stirred for ½ h. acidified with 5% aqueous citric acid and extracted with ethyl acetate, dried and evaporated to dryness. Yield: 100 mg (75%). HPLC-MS: m/z: 535.7 (M)+; Rt: 2.78 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07943669B2
Source datasetuspto-grants-2011_05
ORD IDord-59bc0443a57649159e11db16235401bc
Source noteuspto-grants-2011_05