(1aR,6aR,7S,7aS)-7-hydroxytetrahydro-1aH-oxazolo[3,4-a]oxireno[2,3-d]pyridin-4(2H)-one

N-((6R,7R,8R,8aR)-7,8-Bis-benzyloxy-3-oxo-hexahydro-oxazolo[3,4-a]pyridin-6-yl)-N-(4-methoxy-benzyl)-acetamide

(3aR,7aR,8R,8aR)-8-Benzhydryloxy-2,2-dimethyl-hexahydro-1,3,6-trioxa-4a-aza-s-indacen-5-one

((3aR,6R,7R,7aR)-7-Benzhydryloxy-2,2-dimethyl-hexahydro-[1,3]dioxolo[4,5-c]pyridin-6-yl)-methanol