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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 43065Generated: October 29, 2026

Hydrochloric Acid → 5-((4-Ethylpiperazin-1-yl)methyl)pyridin-2-amine hydrochloride

https://huagongshe.com/reaction/43065

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant[5-(4-Ethyl-piperazin-1-ylmethyl)-pyridin-2-yl]carbamic acid tert-butyl esterHCID 66914627—
Solvent1,4-DioxaneHCID 31275—
Product5-((4-Ethylpiperazin-1-yl)methyl)pyridin-2-amine hydrochlorideHCID 66914536—

Reaction Steps

A mixture of [5-(4-ethyl-piperazin-1-ylmethyl)-pyridin-2-yl]-carbamic acid tert-butyl ester (Step 26.2) (0.75 g, 2.8 mmol) and a 4 N solution of HCl in dioxane (20 mL) was stirred for 72 h at rt and concentrated to afford 660 mg of the title compound as a white solid: ESI-MS: 221.1 [M+H]+; tR=0.80 min (System 1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536175B2
Source datasetuspto-grants-2013_09
ORD IDord-79a05d4f67734b4cb70f32eca0fbad5a
Source noteuspto-grants-2013_09