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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 269149Generated: October 29, 2026

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

https://huagongshe.com/reaction/269149

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromopyridine-3-sulfonamideHCID 12684258—
Reactant5-(4-Chloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86608048—
Product5-[5-(4-Chloro-phenyl)-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-pyridine-3-sulfonic acid amideHCID 67001274—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.6) (63 mg, 0.25 mmol) and 5-bromo-pyridine-3-sulfonic acid amide (59 mg, 0.25 mmol) according to general procedure II. Obtained as a yellow solid (59 mg, 58%). MS (ISP) 410.3 [(M+H)+]; mp 248-249° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07446113B2
Source datasetuspto-grants-2008_11
ORD IDord-90ea69c5236942b5bfc8d570bfe50c43
Source noteuspto-grants-2008_11