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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1293980Generated: October 30, 2026

5-bromo-N-(2-(dimethylamino)ethyl)thiophene-2-sulfonamide → 5-[7-Difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid (2-dimethylamino-ethyl)-amide

https://huagongshe.com/reaction/1293980

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-bromo-N-(2-(dimethylamino)ethyl)thiophene-2-sulfonamideHCID 8716799—
Reactant3-Ethynyl-7-difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidineHCID 86608034—
Product5-[7-Difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-thiophene-2-sulfonic acid (2-dimethylamino-ethyl)-amideHCID 67000742—

Reaction Steps

The title compound was prepared from 7-difluoromethyl-3-ethynyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.2) (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 (170 mg, 60%). MS (ISP) 570.2 [(M+H)+]; mp 132° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07238808B2
Source datasetuspto-grants-2007_07
ORD IDord-9531337b07a049438be3c37a9ddb6952
Source noteuspto-grants-2007_07