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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 489417Generated: October 26, 2026

Hydrochloric Acid → HCID 178469361, compound

https://huagongshe.com/reaction/489417

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 178469335HCID 178469335—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178469361HCID 17846936171.3%

Reaction Steps

To a solution of ethyl 4-(2-chlorophenyl)-6-dimethoxymethyl-4,7-dihydro-2H-pyrazolo[3,4-b]pyridine-5-carboxylate (463 mg) in tetrahydrofuran (5 ml) was added 1 N hydrochloric acid (10 ml) and the mixture was stirred at room temperature for 6 hours. To the reaction mixture was added a saturated aqueous sodium hydrogencarbonate solution and the mixture was extracted with ethyl acetate. The extract was washed with a saturated aqueous sodium chloride solution and dried over anhydrous magnesium sulfate. The solvent was evaporated and the obtained residue was purified by silica gel column chromatography (eluent:hexane-ethyl acetate (1:1)) to give the title compound (290 mg) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06977262B2
Source datasetuspto-grants-2005_12
ORD IDord-4691eaec941f49f185b9fd022d08f50e
Source noteuspto-grants-2005_12