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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 930065Generated: October 31, 2026

Piperazin-2-one → 4-[5-[3-Bromo-5-(trifluoromethoxy)phenyl]-1-(6-chloro-3-pyridyl)pyrazole-3-carbonyl]piperazin-2-one

https://huagongshe.com/reaction/930065

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazin-2-oneHCID 231360—
Reactant4-[5-(3-Chloro-5-fluoro-phenyl)-1-(3-pyridyl)pyrazole-3-carbonyl]piperazin-2-oneHCID 71576533—
ReactantHCID 89609966HCID 89609966—
Product4-[5-[3-Bromo-5-(trifluoromethoxy)phenyl]-1-(6-chloro-3-pyridyl)pyrazole-3-carbonyl]piperazin-2-oneHCID 86574251—

Reaction Steps

75 mg (0.14 mmol, 84% purity) of the compound of Example 40A is reacted analogously to the synthesis of the compound of Example 4 with 15 mg (0.15 mmol) of 2-oxopiperazine. 56 mg (75% of theory) of the title compound is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296720B2
Source datasetuspto-grants-2016_03
ORD IDord-4fb997d9d06141e887cec875b98d1cab
Source noteuspto-grants-2016_03