(4aR)-5c,6t,7c-tris-benzyloxy-(4ar,7ac)-hexahydro-cyclopenta[d][1,3]oxazine-1-carboxylic acid phenyl ester

(3aR)-4c,5t,6c-triacetoxy-1-acetyl-(3ar,6ac)-hexahydro-cyclopenta[c]isoxazole

(3aR,4R,5S,6S,6aR)-4,5,6-Trihydroxyhexahydro-1H-cyclopent[c]isoxazole

(3aR)-4c,5t,6c-trihydroxy-(3ar,6ac)-hexahydro-cyclopenta[c]isoxazole-1-carboxylic acid phenyl ester

(4aR)-5c,6t,7c-tris-benzyloxy-1-methyl-(4ar,7ac)-hexahydro-cyclopenta[d][1,3]oxazine