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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 70193Generated: October 29, 2026

Hydrochloric Acid → 4-Fluorophenyl 2-((pyridin-3-yloxy)methyl)piperazine-1-carboxylate dihydrochloride

https://huagongshe.com/reaction/70193

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 131728868HCID 131728868—
SolventMethanolHCID 887—
Product4-Fluorophenyl 2-((pyridin-3-yloxy)methyl)piperazine-1-carboxylate dihydrochlorideHCID 6679717597%

Reaction Steps

4 M HCl in 1,4-dioxane (6 mL, 24 mmol) was added to a solution of 4-tert-butyl 1-(4-fluorophenyl) 2-((pyridin-3-yloxy)methyl)piperazine-1,4-dicarboxylate TFA salt (88.9 mg, 0.163 mmol) in MeOH (1 mL). After 1 h, the reaction mixture was concentrated under reduced pressure, yielding 63.7 mg (97%) of the desired product as a yellow solid. LC-MS: RT=4.07 min, [M+H]+=332.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822472B2
Source datasetuspto-grants-2014_09
ORD IDord-2f9bcdbaf4c24f208da0eed1519352aa
Source noteuspto-grants-2014_09