A series of α-1-C-4'-arylbutyl-L-arabinoiminofuranoses 3 with functional groups attached to the phenyl ring, which are potential α-glycosidase inhibitors, was designed and synthesized by using a Negishi cross-coupling reaction as the key reaction. Arylbutyl derivatives 3a-e showed potent inhibitory activities against intestinal maltase. Among them, difluorophenylbutyl derivative 3e showed good inhibition activities against intestinal isomaltase and sucrase as compared to those of 1 and commercial drugs.
Keywords: 1-C-4′-Arylbutyl-l-arabinoiminofuranoses; Iminosugars; Structure–activity relationship; Type-2 diabetes; α-Glucosidase inhibitor.
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