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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263042Generated: November 3, 2026

Water → HCID 68777832, compound

https://huagongshe.com/reaction/2263042

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
Reactant1-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 2777760—
ReactantHCID 86625489HCID 86625489—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 68777832HCID 6877783210.3%

Reaction Steps

A mixed solution of 2,2,2-trichloroethyl [6-(4-methylpiperazin-1-yl)pyridin-3-yl]carbamate (271 mg, 0.738 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (200 mg, 0.812 mmol) and diisopropylethylamine (0.129 ml, 0.738 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 70° C. for 1 day. 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 35.4 mg (10.3%) of the desired product as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-65b8bf503a044d749726a2a28cd21358
Source noteuspto-grants-2010_12