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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1516434Generated: November 5, 2026

Citric Acid → HCID 67426433, compound

https://huagongshe.com/reaction/1516434

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantHCID 67426454HCID 67426454—
SolventEthanolHCID 702—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67426433HCID 6742643387%

Reaction Steps

To a mixture of 4-[4-(4-iodobenzotriazol-1-yl)-pyrimidin-2-ylamino]-cyclohexane-carboxylic acid ethyl ester (2.56 g) in THF (20 mL), EtOH (20 mL) and H2O (15 mL) was added LiOH.H2O (0.65 g), and the resulting mixture stirred at RT overnight. The reaction mixture was then acidified with citric acid (2.99 g) in H2O (10 mL), and the solvent removed in vacuo. The resulting light orange solid was stirred in H2O for 30 min, filtered, washed with H2O, and dried to obtain 4-[4-(4-iodobenzotriazol-1-yl)-pyrimidin-2-ylamino]-cyclohexanecarboxylic acid (2.1 g, 87%) as a light orange powder. Mp=252-254° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08227478B2
Source datasetuspto-grants-2012_07
ORD IDord-9ba01894142e47aeb0f5b077ae3ceff7
Source noteuspto-grants-2012_07