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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 558735Generated: October 30, 2026

5-Bromo-2-thiophenesulfonamide → 5-[5-(4-Chloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amide

https://huagongshe.com/reaction/558735

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-2-thiophenesulfonamideHCID 1241304—
Reactant5-(4-Chloro-phenyl)-3-ethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidineHCID 86607995—
Product5-[5-(4-Chloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amideHCID 67001359—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-3-ethynyl-7-trifluoromethyl pyrazolo[1,5-a]pyrimidine (example C.4) (322 mg, 1.0 mmol) and 5-bromo-thiophene-2-sulfonic acid amide (242 mg, 1.0 mmol) according to general procedure II. Obtained as a yellow solid (247 mg, 51%). MS (ISP) 483.5 [(M+H)+]; mp 239-240° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063048B2
Source datasetuspto-grants-2011_11
ORD IDord-89994409195a419dbdc1aea71031653d
Source noteuspto-grants-2011_11