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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 70172Generated: October 29, 2026

Hydrochloric Acid → (2-Chlorothiazol-4-yl)(2-((pyridin-3-yloxy)methyl)piperazin-1-yl)methanone dihydrochloride

https://huagongshe.com/reaction/70172

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantTert-butyl 4-(2-chlorothiazole-4-carbonyl)-3-((pyridin-3-yloxy)methyl)piperazine-1-carboxylateHCID 59671540—
SolventMethanolHCID 887—
Product(2-Chlorothiazol-4-yl)(2-((pyridin-3-yloxy)methyl)piperazin-1-yl)methanone dihydrochlorideHCID 6679732799%

Reaction Steps

4 M HCl in 1,4-dioxane (6 mL, 24 mmol) was added to a solution of tert-butyl 4-(2-chlorothiazole-4-carbonyl)-3-((pyridin-3-yloxy)methyl)piperazine-1-carboxylate (36 mg, 0.083 mmol) in MeOH (1 mL). After stirring overnight, the reaction mixture was concentrated under reduced pressure, yielding 33.8 mg (99%) of the desired product as a white solid. LC-MS: RT=3.12 min, (M+H)+=338.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822472B2
Source datasetuspto-grants-2014_09
ORD IDord-a764d87dffb64515ae6f5ce57831bfc0
Source noteuspto-grants-2014_09