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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269307Generated: October 25, 2026

5-bromo-N-(2-(dimethylamino)ethyl)thiophene-2-sulfonamide → 5-[7-Difluoromethyl-5-(3-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid (2-dimethylamino-ethyl)-amide

https://huagongshe.com/reaction/269307

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-bromo-N-(2-(dimethylamino)ethyl)thiophene-2-sulfonamideHCID 8716799—
Reactant3-Ethynyl-7-difluoromethyl-5-(3-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidineHCID 86608081—
Product5-[7-Difluoromethyl-5-(3-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid (2-dimethylamino-ethyl)-amideHCID 67001015—

Reaction Steps

The title compound was prepared from 3-ethynyl-7-difluoromethyl-5-(3-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.15) (169 mg, 0.5 mmol) and 5-bomo-thiophene-2-sulfonic acid (2-dimethylamino-ethyl)-amide (example B.49) (157 mg, 0.5 mmol) according to general procedure II. Obtained as a yellow solid (180 mg, 63%). MS (ISN) 568.2 [(M−H)−]; mp 170° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-b47079ea20b84e87890463d58e640484
Source noteuspto-grants-2008_11