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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2097335Generated: October 31, 2026

Ethanol → (rac) 3-[6-(4-Chlorophenoxy)-1-methyl-hexylamino]-4-(pyridin-3-yl-amino)-cyclobut-3-ene-1,2-dione

https://huagongshe.com/reaction/2097335

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantAcetonitrileHCID 6342—
Reactant3-(Pyridin-3-ylamino)-4-ethoxy-cyclobut-3-ene-1,2-dioneHCID 10512991—
Reactant6-(4-Chlorophenoxy)-1-methyl-hexylamineHCID 59781554—
SolventTrifluoroacetic acidHCID 6422—
Product(rac) 3-[6-(4-Chlorophenoxy)-1-methyl-hexylamino]-4-(pyridin-3-yl-amino)-cyclobut-3-ene-1,2-dioneHCID 8761256112%

Reaction Steps

The title compound was prepared from 3-ethoxy-4-(pyridine-3-yl-amino)-3-cyclobutene-1,2-dione (164 mg, 0.75 mmol) prepared according to example 1A and crude 6-(4-chlorophenoxy)-1-methyl-hexylamine (738 mg) in refluxing EtOH (15 ml). After 36 h the solvent was evaporated and the product was isolated by preparative HPLC chromatography using a gradient of 30 to 50% MeCN in 0.01% aq. TFA and subsequent freeze drying of the product containing fractions.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08450348B2
Source datasetuspto-grants-2013_05
ORD IDord-4cc0153fa1cb40eb95c6c589e6f899c2
Source noteuspto-grants-2013_05