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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269139Generated: October 25, 2026

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

https://huagongshe.com/reaction/269139

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-BromobenzenesulfonamideHCID 69696—
Reactant5-(4-Chloro-phenyl)-7-cyclopropyl-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86607996—
Product4-[5-(4-Chloro-phenyl)-7-cyclopropyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamideHCID 11851713—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-7-cyclopropyl-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.5) (73 mg, 0.25 mmol) and 4-bromo-benzenesulfonamide (59 mg, 0.25 mmol) according to general procedure II. Obtained as a yellow solid (79 mg, 71%). MS (ISP) 449.3 [(M+H)+]; mp 225-228° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-b5b1239d17f3402e86e44d9e27b27063
Source noteuspto-grants-2008_11