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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1452631Generated: November 1, 2026

Hydrochloric Acid → HCID 57526798, compound

https://huagongshe.com/reaction/1452631

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-butyl (3S)-3-aminopiperidine-1-carboxylateHCID 1501975—
ReactantHCID 57526858HCID 57526858—
ProductHCID 57526798HCID 57526798—

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of tert-butyl[5-chloro-6-(2-hydroxyethyl)pyrazolo[1,5-a]pyrimidin-7-yl](4-ethoxyphenyl)carbamate (300 mg) and (S)-3-amino-1-tert-butoxycarbonylpiperidine (900 mg) was stirred at 90° C. for 16 hr. To the reaction solution, 1 mol/L hydrochloric acid was added, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with aqueous sodium hydrogen carbonate and then brine and dried over sodium sulfate. After the sodium sulfate was filtered off, the solvent was distilled off to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07473694B2
Source datasetuspto-grants-2009_01
ORD IDord-f9e22300c2954e20b08f2d7cc39d429d
Source noteuspto-grants-2009_01