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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269089Generated: October 29, 2026

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

https://huagongshe.com/reaction/269089

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromopyridine-3-sulfonamideHCID 12684258—
Reactant3-Ethynyl-7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidineHCID 71539732—
Product5-[7-Trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-pyridine-3-sulfonic acid amideHCID 11852213—

Reaction Steps

The title compound was prepared from 3-ethynyl-7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.1) (355 mg, 1.0 mmol) and 5-bromo-pyridine-3-sulfonic acid amide (example B.1) (356 mg, 1.5 mmol) according to general procedure II. Obtained as a yellow solid (90 mg, 18%). MS (ISP) 512.3 [(M+H)+]; mp 239-240° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-0738ebf1bf3d4b6b89354c47626aaae2
Source noteuspto-grants-2008_11