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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 930072Generated: October 30, 2026

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

https://huagongshe.com/reaction/930072

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazin-2-oneHCID 231360—
ReactantHCID 71576484HCID 71576484—
ReactantHCID 89610002HCID 89610002—
Product4-[5-[3-Bromo-5-(trifluoromethoxy)phenyl]-1-(5-chloro-3-pyridyl)pyrazole-3-carbonyl]piperazin-2-oneHCID 86574609—

Reaction Steps

75 mg (0.16 mmol) of the compound of Example 43A is reacted analogously to the synthesis of the compound of Example 1 with 18 mg (0.18 mmol) of 2-oxopiperazine. 76 mg (86% 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-078f2a6325d248d9a3133a3d85ed89f7
Source noteuspto-grants-2016_03