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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269206Generated: October 25, 2026

4-Bromo-N,N-dimethylbenzenesulphonamide → 4-[7-Difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-N,N-dimethyl-benzenesulfonamide

https://huagongshe.com/reaction/269206

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Bromo-N,N-dimethylbenzenesulphonamideHCID 12818—
Reactant3-Ethynyl-7-difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidineHCID 86608034—
Product4-[7-Difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-N,N-dimethyl-benzenesulfonamideHCID 11852937—

Reaction Steps

The title compound was prepared from 7-Difluoromethyl-3-ethynyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.2) (340 mg, 1.0 mmol) and 4-bromo-N,N-dimethyl-benzenesulfonamide (example B.25) (276 mg, 1.0 mmol) according to general procedure II. Obtained as a yellow solid (390 mg, 74%). MS (ISP) 521.3 [(M+H)+]; mp 211-212° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-44853e0996fb4353ad937a4c2fe4fbb5
Source noteuspto-grants-2008_11