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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2114313Generated: October 29, 2026

Pyrazole → 4-Bromo-5-(2-chloro-benzoylamino)-1-methyl-pyrazole-3-carboxylic acid {2-[4-(4,5-dihydro-1h-imidazol-2-yl)-phenyl]ethyl}amide

https://huagongshe.com/reaction/2114313

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrazoleHCID 1048—
Reactant2-Chlorobenzoyl chlorideHCID 69110—
Reactant4-(2-Aminoethyl)benzonitrileHCID 21912525—
ReactantHCID 178461679HCID 178461679—
Product4-Bromo-5-(2-chloro-benzoylamino)-1-methyl-pyrazole-3-carboxylic acid {2-[4-(4,5-dihydro-1h-imidazol-2-yl)-phenyl]ethyl}amideHCID 59773561—

Reaction Steps

The pyrazole acid, prepared by coupling methyl ester 85 (Procedure 26) with 2-chlorobenzoyl chloride (21) followed by hydrolysis and bromination as shown in Procedure 8, was coupled to amine 169 (Procedure 34) using the method of Procedure 10. Formation of the amidine using the method of Procedure 33.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07432379B2
Source datasetuspto-grants-2008_10
ORD IDord-e69be65630d14143b64dcbb7b8392af9
Source noteuspto-grants-2008_10