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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2037025Generated: November 2, 2026

Piperidine → HCID 178483578, compound

https://huagongshe.com/reaction/2037025

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
ReactantHydantoinHCID 10006—
ReactantHCID 58313754HCID 58313754—
SolventEthanolHCID 702—
ProductHCID 178483578HCID 17848357865.9%

Reaction Conditions

Temperature85 °C

Reaction Steps

To 5-(3-chloro-4-(3-(dimethylamino)propoxy)phenylamino)-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde (79 mg, 0.184 mmol) in EtOH (3 mL) was added piperidine (22 uL 0.221 mmol) followed by hydantoin (21 mg, 0.202 mmol). The reaction mixture was stirred at 85° C. for 6 h. The solvent was removed by rotary evaporation and the residue was diluted with 3 mL of water. The suspension was sonicated and the resulting solid was filtered off and washed with water followed by a 1:1 mixture of EtOH/water. The material was Dried under vacuum to provide 62 mg of (Z)-5-((5-(3-chloro-4-(3-(dimethylamino)propoxy)phenylamino)-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidin-3-yl)methylene)imidazolidine-2,4-dione LCMS (ES): m/z 511 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575177B2
Source datasetuspto-grants-2013_11
ORD IDord-fa44a0ffc50a49018f65e0bf40577ad3
Source noteuspto-grants-2013_11