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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 558838Generated: October 26, 2026

5-Bromo-2-thiophenesulfonamide → 5-[8-Cyano-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridin-3-ylethynyl]-thiophene-2-sulfonic acid amide

https://huagongshe.com/reaction/558838

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromo-2-thiophenesulfonamideHCID 1241304—
Reactant3-Ethynyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridine-8-carbonitrileHCID 86608096—
Product5-[8-Cyano-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridin-3-ylethynyl]-thiophene-2-sulfonic acid amideHCID 16738466—

Reaction Steps

The title compound was prepared from 3-ethynyl-6-(4-trifluoromethyl-phenyl)-imidazo[1,2-a]pyridine-8-carbonitrile (example C.23) (150 mg, 0.5 mmol) and commercially available 5-bromothiophene-2-sulfonamide (117 mg, 0.5 mmol) according to general procedure II. Obtained as an off-white solid (80 mg, 35%). MS (ISP) 473.1 [(M+H)+]; mp 267-269° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063048B2
Source datasetuspto-grants-2011_11
ORD IDord-24f59f37dfad4ab593ca66bbc0e347e0
Source noteuspto-grants-2011_11