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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1810288Generated: November 1, 2026

Citric Acid → HCID 54672884, compound

https://huagongshe.com/reaction/1810288

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 86651104HCID 86651104—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductHCID 54672884HCID 54672884—

Reaction Steps

[2′-(N′-Benzyl-N″-cyano-N-ethyl-guanidinomethyl)-6-methoxy-4′-trifluoromethyl-biphenyl-3-yl]-acetic acid ethyl ester (0.055 g, 0.1 mmol) in TIFF (2 mL) and H2O (0.5 mL) was treated with lithium hydroxide (0.02 g, 0.5 mmol), and the reaction was monitored by analytical LCMS. Once no starting material was seen, the mixture was diluted with EtOAc and H2O. Citric acid was added to neutralize the solution to pH 3, and the mixture was extracted with EtOAc. The combined organic layers were washed with H2O, dried over MgSO4, filtered, and concentrated twice from CH2Cl2 to give the title compound. M+H is 525.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362044B2
Source datasetuspto-grants-2013_01
ORD IDord-4e1a4197f323448188b0a47ff24a0086
Source noteuspto-grants-2013_01