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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2275367Generated: October 26, 2026

Hydrochloric Acid → (R)-N-(5-(2-(2-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-4-methylpiperidine-4-carboxamide hydrochloride

https://huagongshe.com/reaction/2275367

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(R)-tert-butyl 4-(5-(2-(2-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-ylcarbamoyl)-4-methylpiperidine-1-carboxylateHCID 58386269—
Solvent1,4-DioxaneHCID 31275—
Product(R)-N-(5-(2-(2-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-4-methylpiperidine-4-carboxamide hydrochlorideHCID 67330069—

Reaction Steps

To (R)-tert-butyl 4-(5-(2-(2-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-ylcarbamoyl)-4-methylpiperidine-1-carboxylate (Example 48; 28 mg, 0.05 mmol), was added 1 mL 4 N HCl solution in dioxane and stirred at ambient temperature for 10 minutes. The reaction was concentrated, treated with ether, and filtered, giving the final product (HCl salt) as a fine beige powder. MS (apci) m/z=457.1 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09127013B2
Source datasetuspto-grants-2015_09
ORD IDord-c899c842df38479d9fb182428d9c2044
Source noteuspto-grants-2015_09