(1R,2S,3S,4R,5R)-1-Amino-4,5,6-trihydroxy-5-(hydroxymethyl)cyclopentane

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

((1R)-2c-amino-3t,4c,5t-tris-benzyloxy-cyclopentyl)-methanol

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

(3aΞ,4R)-4r',5t'-bis-benzyloxy-(3ar,6ac)-hexahydro-cyclopenta[c]isoxazole