Synthesis of (+)-(1R,2S,9S,9aR)-octahydro-1H-pyrrolo-[1,2-a]azepine-1,2,9-triol: a potential glycosidase inhibitor

The title compound was prepared as a potential glycosidase inhibitor. Key steps in the synthesis are vinyl epoxide aminolysis, ring-closing metathesis, cis-dihydroxylation and then ring closure.