(3aR,3bR,6S,7R,7aR,8aR)-9-(tert-butylsulfonyl)-6-methoxy-2,2-dimethylhexahydro-7,3b-(epiminoethano)[1,3]dioxolo[4',5':4,5]furo[3,2-b]pyran

(3aR,3bR,6S,7S,7aR,8aR)-3b-(2-Benzyloxy-ethyl)-2,2-dimethyl-hexahydro-[1,3]dioxolo[4,5]furo[3,2-b]pyran-6,7-diol

2,2,2-trichloroethyl (3aR,3bR,6S,7R,7aR,8aR)-6-hydroxy-2,2-dimethylhexahydro-7,3b-(epiminoethano)[1,3]dioxolo[4',5':4,5]furo[3,2-b]pyran-9-carboxylate

2,2,2-trichloroethyl (3aR,3bR,6R,7R,7aR,8aR)-6-hydroxy-2,2-dimethylhexahydro-7,3b-(epiminoethano)[1,3]dioxolo[4',5':4,5]furo[3,2-b]pyran-9-carboxylate

Toluene-4-sulfonic acid (3aR,3bR,6S,7S,7aR,8aR)-3b-(2-azido-ethyl)-6-hydroxy-2,2-dimethyl-hexahydro-[1,3]dioxolo[4,5]furo[3,2-b]pyran-7-yl ester