Ethoxyquin → HCID 54439761, Verbindung

Beteiligte Stoffe

Reaktionsschritte

2-Acetamido-3,4,6-tri-O-acetyl-D-glucopyranosyl chloride (18.3 g) and ethoxyquin (22.1 g) were vigourously stirred together at 80° for 3 hours. Acetone (50 ml) was added to the hot reaction mixture and stirring was continued for 0.5 hours. After cooling, the solid ethoxyquin-hydrochloride was filtered, washed with acetone and the combined filtrates were evaporated under reduced pressure. The crude product was purified by column chromatography on silica (ethylacetate-benzene 1:4). 16.5 g of 1-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-D-glucopyranosyl)-6-ethoxy-1,2-dihydro-2,2,4-trimethylquinoline were obtained. Analytical grade sample was obtained by recrystallisation from ether or isopropanol. m.p. 186°-187°.

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