(3aR,3bR,6R,7R,7aS,8aR)-6,7-Bis-benzyloxy-2,2-dimethyl-hexahydro-1,3,8-trioxa-4-aza-cyclopenta[a]indene-4-carboxylic acid benzyl ester

(R)-1-((3aR,5S,6R,6aR)-6-Amino-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl)-ethane-1,2-diol

((3aR,5R,6R,6aR)-2,2-Dimethyl-5-vinyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl)-carbamic acid benzyl ester

Allyl-((3aR,5R,6R,6aR)-2,2-dimethyl-5-vinyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl)-carbamic acid benzyl ester

[(3aR,5S,6S,6aR)-5-((R)-1,2-Dihydroxy-ethyl)-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl]-carbamic acid benzyl ester