Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2238002Generated: November 1, 2026

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

https://huagongshe.com/reaction/2238002

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 numberUS07718661B2
Source datasetuspto-grants-2010_05
ORD IDord-557c0b7b541c4ae0af80f1b9e8b0fc78
Source noteuspto-grants-2010_05