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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 257583Generated: October 27, 2026

2-Chlorobenzoic Acid → 3-n-Butyl-1-[5-(N-n-butylcarbamoyl)-2-(trifluoromethyl)phenyl]-4-[[2'-[N-(2-chlorobenzoyl)sulfamoyl]-3-fluorobiphenyl-4-yl]methyl]-1H-pyrazole-5-carbonitrile

https://huagongshe.com/reaction/257583

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chlorobenzoic AcidHCID 8374—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantImidazolateHCID 3386966—
Reactant3-n-Butyl-1-[5-(N-n-butylcarbamoyl)-2-(trifluoromethyl)phenyl]-4-[(3-fluoro-2'-sulfamoylbiphenyl-4-yl)methyl]-1H-pyrazole-5-carbonitrileHCID 19783218—
Product3-n-Butyl-1-[5-(N-n-butylcarbamoyl)-2-(trifluoromethyl)phenyl]-4-[[2'-[N-(2-chlorobenzoyl)sulfamoyl]-3-fluorobiphenyl-4-yl]methyl]-1H-pyrazole-5-carbonitrileHCID 19783190—

Reaction Steps

Following the procedure of Example 1, Step H, 2-chlorobenzoic acid is converted to its imidazolide with CDI and subsequently reacted with 3-n-butyl-1-[5-(N-n-butylcarbamoyl)-2-(trifluoromethyl)phenyl]-4-[(3-fluoro-2'-sulfamoylbiphenyl-4-yl)methyl]-1H-pyrazole-5-carbonitrile (from Step L) in the presence of DBU to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05262412
Source datasetuspto-grants-1993_11
ORD IDord-5ca51f1c90dc45f3949b6968cd1f9fe3
Source noteuspto-grants-1993_11