Dibutyl sulfoxide → HCID 178455551, Verbindung

Beteiligte Stoffe

Reaktionsschritte

A mixture of 0.742 g of (2S)-2-{[4-(benzyloxy)-3-(butylsulfinyl)phenoxy]methyl}oxirane (obtained by analogy with the method disclosed in WO 99/65895 but starting from the butyl sulfoxide instead of the methyl sulfoxide and using (S)-(+)-glycidyl nosylate; [α]D=+1.9 (c=1%, MeOH)) (2.06 mmol) and of 0.666 g of ethyl trans-2-[4-(4-aminocyclohexyl)phenoxy]-2,2-dimethylacetate hydrochloride (2.18 mmol) in ethanol (25 ml) is heated to reflux overnight. The solvent is evaporated under reduced pressure and the product obtained is purified by flash chromatography, elution being carried out with a methylene chloride/methanol/aqueous ammonia (95/5/0.5) mixture. The title product is obtained in the form of a yellow oil (0.730 g, 53%).

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