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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 877807Generated: October 29, 2026

Hydrochloric Acid → 4-(((3S,4S)-4-ethylpyrrolidin-3-yl)amino)-6-(1-phenyl-1H-1,2,3-triazol-4-yl)pyrrolo[1,2-b]pyridazine-3-carboxamide

https://huagongshe.com/reaction/877807

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
Reactant(3S,4S)-tert-butyl 3-((3-carbamoyl-6-(1-phenyl-1H-1,2,3-triazol-4-yl)pyrrolo[1,2-b]pyridazin-4-yl)amino)-4-ethylpyrrolidine-1-carboxylateHCID 68291098—
SolventDichloromethaneHCID 6344—
Product4-(((3S,4S)-4-ethylpyrrolidin-3-yl)amino)-6-(1-phenyl-1H-1,2,3-triazol-4-yl)pyrrolo[1,2-b]pyridazine-3-carboxamideHCID 68291197106.4%

Reaction Steps

To a solution of (3S,4S)-tert-butyl 3-((3-carbamoyl-6-(1-phenyl-1H-1,2,3-triazol-4-yl)pyrrolo[1,2-b]pyridazin-4-yl)amino)-4-ethylpyrrolidine-1-carboxylate (41 mg, 0.079 mmol) in dichloromethane (1 mL) was added 4N HCl in 1,4-dioxane (0.198 mL, 0.794 mmol). The solution was stirred at room temperature. After stirring 2 h, the reaction is complete. Concentration afforded a tan solid as the hydrochloride salt of the title compound (35 mg, 99% yield). MS (ES+) m/z: 417.1 (M+H). LC retention time: 2.776 min (analytical LCMS Method J).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08987268B2
Source datasetuspto-grants-2015_03
ORD IDord-2112761ae6f44104a3095f8e601f4b21
Source noteuspto-grants-2015_03