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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 706584Generated: October 25, 2026

Hydrochloric Acid → Lithium 7-(2-(4-isopropylpiperazin-1-yl)ethoxy)imidazo[1,2-a]pyridine-3-carboxylate

https://huagongshe.com/reaction/706584

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium hydroxide, monohydrateHCID 168937—
ReactantEthyl 7-(2-(4-isopropylpiperazin-1-yl)ethoxy)imidazo[1,2-a]pyridine-3-carboxylateHCID 67260889—
SolventWaterHCID 962—
ProductLithium 7-(2-(4-isopropylpiperazin-1-yl)ethoxy)imidazo[1,2-a]pyridine-3-carboxylateHCID 67260109101.6%

Reaction Conditions

Temperature95 °C

Reaction Steps

To ethyl 7-(2-(4-isopropylpiperazin-1-yl)ethoxy)imidazo[1,2-a]pyridine-3-carboxylate (5.68 g, 15.8 mmol) in water (30 mL) was added lithium hydroxide hydrate (0.67 g, 16.0 mmol). The reaction was heated to 95° C. for 4 hours. The reaction was cooled to ambient temperature and hydrogen chloride (0.0394 mL, 4M in dioxane) was added to the reaction mixture, which was stirred for 10 minutes. Water was removed under vacuum for overnight to give the title compound (5.43 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09174981B2
Source datasetuspto-grants-2015_11
ORD IDord-fd16f69b92e44f76a9f2af8afb2e4539
Source noteuspto-grants-2015_11