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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2168684Generated: October 30, 2026

Hydrochloric Acid → 3-Butyl-4-(4-cyclohexyloxy-phenyl)-6-(4-fluoro-piperidin-4-ylmethoxy)-pyridazine dihydrochloride

https://huagongshe.com/reaction/2168684

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-[6-Butyl-5-(4-cyclohexyloxy-phenyl)-pyridazin-3-yloxymethyl]-4-fluoro-piperidine-1-carboxylic acid tert-butyl esterHCID 67374462—
SolventDichloromethaneHCID 6344—
Solvent1,4-DioxaneHCID 31275—
Product3-Butyl-4-(4-cyclohexyloxy-phenyl)-6-(4-fluoro-piperidin-4-ylmethoxy)-pyridazine dihydrochlorideHCID 67371357—

Reaction Steps

To a solution of 4-[6-butyl-5-(4-cyclohexyloxy-phenyl)-pyridazin-3-yloxymethyl]-4-fluoro-piperidine-1-carboxylic acid tert-butyl ester (0.15 mmol, 85 mg) in DCM (1 mL) was added 4 N HCl in dioxane (1.5 mL) and the reaction was stirred for 30 min. The volatiles were removed in vacuo and the residue was triturated with anhydrous ethyl ether (2×3 mL) and dried under high vacuum to provide 3-butyl-4-(4-cyclohexyloxy-phenyl)-6-(4-fluoro-piperidin-4-ylmethoxy)-pyridazine dihydrochloride (0.078 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09045461B2
Source datasetuspto-grants-2015_06
ORD IDord-9ba96801f19449b99aacf6821d0738d3
Source noteuspto-grants-2015_06