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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2237982Generated: October 30, 2026

5-Bromopyridine-3-sulphonic acid → Ro4988546

https://huagongshe.com/reaction/2237982

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Bromopyridine-3-sulphonic acidHCID 12684261—
Reactant3-Ethynyl-7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidineHCID 71539732—
ProductRo4988546HCID 73755205—

Reaction Steps

The title compound was prepared from 3-ethynyl-7-trifluoromethyl-5-(4-trifluoromethyl-phenyl)-pyrazolo[1,5-a]pyrimidine (example C.1) (300 mg, 1.0 mmol) and 5-Bromo-pyridine-3-sulfonic acid (example B.2, step 1) (214 mg, 1.0 mmol) according to general procedure II. Obtained as an orange solid (280 mg, 54%). MS (ISN) 510.9 [(M−H)−]; mp >288° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07718661B2
Source datasetuspto-grants-2010_05
ORD IDord-523efca01b334d818b411efc1ffd021d
Source noteuspto-grants-2010_05