(2R,3S,4R)-1-acetyl-3,4-bis(benzyloxy)-2-<(1S)-1-benzyloxy-3-carboxypropyl>pyrrolidine

Acetic acid (1S,2R,8S,8aR)-8-acetoxy-2-benzyloxy-1,2,3,5,8,8a-hexahydro-indolizin-1-yl ester

Acetic acid (2S,3S,4R)-2-((R)-1-acetoxy-2,2-bis-ethylsulfanyl-ethyl)-1-allyl-4-benzyloxy-pyrrolidin-3-yl ester

(3aS,4S,6aR)-2,2-Dimethyl-5-(9-phenyl-9H-fluoren-9-yl)-tetrahydro-[1,3]dioxolo[4,5-c]pyrrole-4-carboxylic acid methyl ester

(1S,2R,8S,8aR)-1,2,8-tri-O-acetyl-5-oxo-octahydroindolizine