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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 558674Generated: October 29, 2026

5-Bromopyridine-3-sulfonamide → 5-[7-Difluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-pyridine-3-sulfonic acid amide

https://huagongshe.com/reaction/558674

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromopyridine-3-sulfonamideHCID 12684258—
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]-pyridine-3-sulfonic acid amideHCID 67000130—

Reaction Steps

The title compound was prepared from 7-Difluoromethyl-3-ethynyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.2) (340 mg, 1.0 mmol) and 5-Bromo-pyridine-3-sulfonic acid amide (example B.1) (215 mg, 1.0 mmol) according to general procedure II. Obtained as a yellow solid (330 mg, 66%). MS (ISP) 494.3 [(M+H)+]; mp 238° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08063048B2
Source datasetuspto-grants-2011_11
ORD IDord-b23a5efc12e840c2bf9e8b2d25076ea5
Source noteuspto-grants-2011_11