(3aS,9aR,10S,10aR)-2,2-dimethylhexahydro-4H-[1,3]dioxolo[4,5]pyrido[1,2-c][1,3]oxazin-10-yl methanesulfonate

(3aS,8aR,9S,9aR)-9-(hydroxymethyl)-2,2-dimethyl-octahydro[1,3]dioxolo[4,5-f]indolizin-9-ol

(3aS,8aR,9S,9aR)-2,2-dimethyl-octahydro[1,3]dioxolo[4,5-f]indolizin-9-yl methanesulfonate

(3aS,8aR,9S,9aS)-2,2-dimethyl-octahydro[1,3]dioxolo[4,5-f]indolizin-9-ol