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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2264218Generated: October 31, 2026

Hydrochloric Acid → HCID 178524815, compound

https://huagongshe.com/reaction/2264218

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 178469988HCID 178469988—
SolventTetrahydrofuran ethanolHCID 21873804—
ProductHCID 178524815HCID 17852481534.9%

Reaction Conditions

Temperature60 °C

Reaction Steps

To a solution of ethyl 1-[6-(3-fluoropyridin-4-yl)-5-pyridin-3-yl-3H-imidazo[4,5-b]pyridin-2-yl]-1H-pyrazole-4-carboxylate (0.022 g, 0.05 mmol) in a mixture of THF/ethanol 1:1 (1 mL), 2N sodium hydroxide aqueous solution (0.05 mL) was added. The mixture was heated at 60° C. for 2 hours and then neutralised with 2N hydrogen chloride aqueous solution. The solvent was evaporated and the crude mixture was purified by solid phase extraction, SCX, it was washed with water and eluted with methanol/ammonia (9:1) to give the title compound (0.007 g, 29% of yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07855202B2
Source datasetuspto-grants-2010_12
ORD IDord-27d4ce62cd154abb91f19ae819ebf763
Source noteuspto-grants-2010_12