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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 930074Generated: October 31, 2026

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

https://huagongshe.com/reaction/930074

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazin-2-oneHCID 231360—
ReactantHCID 71576484HCID 71576484—
ReactantHCID 89609968HCID 89609968—
Product4-[5-[3-Bromo-5-(trifluoromethoxy)phenyl]-1-(5-fluoro-3-pyridyl)pyrazole-3-carbonyl]piperazin-2-oneHCID 86574623—

Reaction Steps

75 mg (0.17 mmol) of the compound of Example 44A is reacted analogously to the synthesis of the compound of Example 1 with 19 mg (0.19 mmol) of 2-oxopiperazine. 80 mg (90% 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-d465387dfbea4ee6ac7dcc36bb6fc54a
Source noteuspto-grants-2016_03