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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263024Generated: November 3, 2026

Water → HCID 68776944, compound

https://huagongshe.com/reaction/2263024

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
Reactant2,2,2-Trichloroethyl pyridin-3-ylcarbamateHCID 68575380—
Reactant1-[3-(Thiophen-2-yl)-1,2,4-thiadiazol-5-yl]piperazineHCID 68778015—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 68776944HCID 6877694437.1%

Reaction Steps

A mixed solution of 2,2,2-trichloroethyl pyridin-3-ylcarbamate (235 mg, 0.872 mmol), 1-[3-(2-thienyl)-1,2,4-thiadiazol-5-yl]piperazine (200 mg, 0.793 mmol) and diisopropylethylamine (0.152 ml, 0.872 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 80° 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 the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 109 mg (37.1%) of the desired product as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-17325971e4644a15a710db0b7f31361b
Source noteuspto-grants-2010_12