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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2238224Generated: November 2, 2026

5-Bromo-2-thiophenesulfonamide → 5-[5-(4-Chloro-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amide

https://huagongshe.com/reaction/2238224

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-2-thiophenesulfonamideHCID 1241304—
Reactant5-(4-Chloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86608048—
Product5-[5-(4-Chloro-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amideHCID 67001042—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.6) (37 mg, 0.17 mmol) and 5-bromo-thiophene-2-sulfonamide (35 mg, 0.17 mmol) according to general procedure II. Obtained as a yellow solid (45 mg, 74%). MS (ISP) 415.0 [(M+H)+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07718661B2
Source datasetuspto-grants-2010_05
ORD IDord-d92ea6d3ac3a44a49cd1f2d6623c40ca
Source noteuspto-grants-2010_05