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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898122Generated: November 2, 2026

Water → 4-Chloro-N-[5-chloro-2-(2-oxazol-2-yl-benzoyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

https://huagongshe.com/reaction/1898122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant4-Chloro-N-[5-chloro-2-(2-oxazol-2-yl-benzoyl)-Pyridin-3-yl]-N-methoxymethyl-3-trifluoromethyl-benzenesulfonamideHCID 57942358—
SolventHydrochloric AcidHCID 313—
Solvent1,4-DioxaneHCID 31275—
Product4-Chloro-N-[5-chloro-2-(2-oxazol-2-yl-benzoyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamideHCID 5794256857.7%

Reaction Steps

A mixture of 4-Chloro-N-[5-chloro-2-(2-oxazol-2-yl-benzoyl)-pyridin-3-yl]-N-methoxymethyl-3-trifluoromethyl-benzenesulfonamide (15 mg) in 2 mL of 4M HCl in dioxane and 1 mL of water was refluxed for 2 hours. After cooling to rt the mixture was concentrated, diluted with water and then sodium bicarbonate was added until pH was 6. The mixture was extracted with ethyl acetate, dried and concentrated. The residue was purified via flash column (35% ethyl acetate in hexane) to afford 8.0 mg of title compound as an off white solid. MS: (M+H)/z=542.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08519135B2
Source datasetuspto-grants-2013_08
ORD IDord-cfa0fb0fc87c4c3a859c8b8caffc7886
Source noteuspto-grants-2013_08