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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2262964Generated: October 30, 2026

Water → HCID 68777272, compound

https://huagongshe.com/reaction/2262964

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
Reactant1-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 2777760—
ReactantHCID 86625481HCID 86625481—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 68777272HCID 687772729%

Reaction Steps

A mixed solution of 2,2,2-trichloroethyl (5-morpholin-4-yl-1,3,4-oxadiazol-2-yl)carbamate (269 mg, 0.777 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (211 mg, 0.854 mmol) and diisopropylethylamine (0.149 ml, 0.854 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 70° C. for 3 hours. Water was poured to the reaction mixture, and the resulting solution was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by high performance liquid chromatography (YMC HPLC Column eluted with 10% to 100% Liquid A; Liquid A: a 0.1% solution of trifluoroacetic acid in acetonitrile; Liquid B: an aqueous 0.1% trifluoroacetic acid solution) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 31 mg (9.0%) of the desired product as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-231493dcfd3d49a0ae60a690e657a2bf
Source noteuspto-grants-2010_12