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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263203Generated: October 26, 2026

Water → HCID 11703691, compound

https://huagongshe.com/reaction/2263203

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
Reactant1-[4-(3-Fluorophenyl)-1,3-thiazol-2-yl]piperazineHCID 61781392—
Reactant2,2,2-Trichloroethyl pyridazin-3-ylcarbamateHCID 68576698—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 11703691HCID 1170369128.1%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 2,2,2-trichloroethyl pyridazin-3-ylcarbamate (226 mg, 0.835 mmol), 4-[4-(3-fluorophenyl)-1,3-thiazol-2-yl]piperazine (200 mg, 0.760 mmol) and diisopropylethylamine (0.265 ml, 1.52 mmol) in dimethylsulfoxide (2.5 ml) was stirred at 70° C. for 3 days. Water was poured into the reaction solution, and the mixture 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 silica gel column chromatography (ethyl acetate) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give the desired product (92.7 ml, 28.1%) as a solid. mp 176-177° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-accc0533658f4a55b80cf324eb551173
Source noteuspto-grants-2010_12