N-Alkyl Isofagomine Lactams: Synthesis, Glycosidase Inhibition, and Antimicrobial Assessments

Abstract A series of six N-alkyl isofagomine lactam derivatives is synthesized over ten steps from d-arabinose. The compounds are evaluated as glycosidase inhibitors. It was found that the N-alkyl groups have a detrimental effect on the glycosidase inhibition activities, as the prepared N-alkyl isofagomine lactam derivatives are much less potent glycosidase inhibitors than native isofagomine lactam.