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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1293908Generated: October 30, 2026

4-Bromobenzenesulfonamide → 4-[5-(4-Chloro-3-methyl-phenyl)-7-difluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamide

https://huagongshe.com/reaction/1293908

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-BromobenzenesulfonamideHCID 69696—
Reactant5-(4-Chloro-3-methyl-phenyl)-7-difluoromethyl-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86608084—
Product4-[5-(4-Chloro-3-methyl-phenyl)-7-difluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamideHCID 11852619—

Reaction Steps

The title compound was prepared from 5-(4-chloro-3-methyl-phenyl)-7-difluoromethyl-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.16) (168 mg, 0.5 mmol) and commercially available 4-bromo-benzenesulfonamide (118 mg, 0.5 mmol) according to general procedure II. Obtained as a yellow solid (110 mg, 46%). MS (ISN) 471.0 [(M−H)−]; mp 237° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07238808B2
Source datasetuspto-grants-2007_07
ORD IDord-68f2f0f567074c8196f767df5e1c9914
Source noteuspto-grants-2007_07