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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2272496Generated: November 1, 2026

Hydrochloric Acid → HCID 118037667, compound

https://huagongshe.com/reaction/2272496

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 118037859HCID 118037859—
SolventEthanolHCID 702—
ProductHCID 118037667HCID 11803766776.9%

Reaction Steps

A mixture of methyl 1-(1-((2-cyclopropyl-2′,4′-difluoro-5-isopropoxybiphenyl-4-yl)methyl)piperidin-4-yl)-3-ethyl-2-oxo-1,2-dihydropyridine-4-carboxylate (208 mg), a 1 M aqueous sodium hydroxide solution (3 mL), and ethanol (6 mL) was stirred at 70 C for 1 hour. The reaction mixture was pH-adjusted to 3 using 1 M hydrochloric acid, followed by extraction with ethyl acetate twice. The obtained organic layer was dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The obtained residue was recrystallized (2-propanol/hexane) to obtain the title compound (156 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09120777B2
Source datasetuspto-grants-2015_09
ORD IDord-a44d2c4a73d04a44ad35951c42902850
Source noteuspto-grants-2015_09