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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269236Generated: October 26, 2026

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

https://huagongshe.com/reaction/269236

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-2-thiophenesulfonamideHCID 1241304—
Reactant5-(4-Chloro-3-methyl-phenyl)-7-difluoromethyl-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86608084—
Product5-[5-(4-Chloro-3-methyl-phenyl)-7-difluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid amideHCID 11852618—

Reaction Steps

The title compound was prepared from 5-(4-chloro-3-methyl-phenyl)-7-difluoromethyl-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.16) (159 mg, 0.5 mmol) and commercially available 5-bromo-thiophene-2-sulfonamide (121 mg, 0.5 mmol) according to general procedure II. Obtained as a yellow solid (190 mg, 79%). MS (ISN) 477.0 [(M−H)−]; mp 216° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-e53cdbc6ec5642fab5711b355e4c6044
Source noteuspto-grants-2008_11