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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20091Generated: October 25, 2026

Hydrochloric Acid → 5-Methoxy-2-oxo-1-(4-piperidinyl)-2,3-dihydro-1H-imidazo[4,5-b]pyridine

https://huagongshe.com/reaction/20091

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant5-Methoxy-2-oxo-1-(1-t-butoxycarbonylpiperidin-4-yl)-2,3-dihydro-1H-imidazo[4,5-b]pyridineHCID 22293280—
SolventMethanolHCID 887—
SolventDiethyl EtherHCID 3283—
Product5-Methoxy-2-oxo-1-(4-piperidinyl)-2,3-dihydro-1H-imidazo[4,5-b]pyridineHCID 2229316485.6%

Reaction Steps

5-Methoxy-2-oxo-1-(1-t-butoxycarbonylpiperidin-4-yl)-2,3-dihydro-1H-imidazo[4,5-b]pyridine (100 mg, 0.287 mmol) was dissolved in methanol (2.5 mL) and a solution of 2N hydrochloric acid in ether (3 mL) was added at room temperature. After 2 h, the volatiles were removed in vacuo, to give the title compound (61 mg). MS 249.1 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745427B2
Source datasetuspto-grants-2010_06
ORD IDord-63199c7fe7474df8839b93bfb0650808
Source noteuspto-grants-2010_06