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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1529256Generated: November 3, 2026

Hydrochloric Acid → 1-(6-(5-bromo-1H-indazol-3-yl)pyrazin-2-yl)piperidin-4-amine hydrochloride salt

https://huagongshe.com/reaction/1529256

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsopropanolHCID 3776—
Reactanttert-butyl 1-(6-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yl)piperidin-4-ylcarbamateHCID 67959723—
Product1-(6-(5-bromo-1H-indazol-3-yl)pyrazin-2-yl)piperidin-4-amine hydrochloride saltHCID 67958094—

Reaction Conditions

Temperature50 °C

Reaction Steps

A glass scintillation vial containing tert-butyl 1-(6-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yl)piperidin-4-ylcarbamate 1e (0.338 g, 0.606 mmol) and HCl, 5-6N in IPA (12 mL, 60.0 mmol) was stirred vigorously at 50° C. for 4 h. The reaction mixture was cooled to RT and the solvent was removed in vacuo. The residue was concentrated to dryness to give a yellow solid that was used in the next step without further purification. MS (ESI, pos. ion) m/z: 373 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09090593B2
Source datasetuspto-grants-2015_07
ORD IDord-00baa8623bfc4d16b69114e8c634c8ba
Source noteuspto-grants-2015_07