Total synthesis of(−)-verrucarol (1) was achieved starting from D-glucose-derived bicyclic lactone 4 through 1) a stereoselective asymmetric quaternization of the α-carbon of the lactone, 2) Dieckmann cyclization for access to the C-ring equivalent, 3) a skeletal rearrangement for the trichothecene ring system, and 4) the final stereoselective epoxidation of an exo-methylene group.