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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 751445Generated: October 30, 2026

Citric Acid → HCID 16719111, compound

https://huagongshe.com/reaction/751445

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantMethanolHCID 887—
ReactantLithium HydroxideHCID 3939—
ReactantHCID 59754773HCID 59754773—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
ProductHCID 16719111HCID 16719111—

Reaction Conditions

Temperature60 °C

Reaction Steps

3-[5-Methoxy-1-(4-chloro-benzyl)-1H-pyrrolo[3,2-b]pyridin-2-yl]-2,2-dimethyl-propionic acid ethyl ester (0.050 g, 0.12 mmol) was dissolved in THF (0.1 mL), MeOH(0.1 mL), and H2O (0.1 mL). LiOH(0.02 g, 0.50 mmol) was added and the reaction was heated to 60° C. for 2 hours. Once no starting material was seen by LCMS, the reaction was cooled to room temperature and diluted with EtOAc and water. The mixture was neutralized with solid citric acid to ˜pH 5, the aqueous layer was extracted three times with EtOAc, the combined organics were washed twice with water, once with brine, dried over MgSO4, filtered and concentrated to give the desired acid. LCMS (ESI) M+H 373.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07405302B2
Source datasetuspto-grants-2008_07
ORD IDord-5d2fa9f7fb2f43e5841bd259e185d73e
Source noteuspto-grants-2008_07