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

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

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

(1S,2R,8S,8aR)-1,2,8-triacetoxyindolizine

Acetic acid (3aR,6R,7S,7aR,8R)-7-acetoxy-6-benzyloxy-3a,4,6,7,7a,8-hexahydro-3H,5H-2-oxa-1,4a-diaza-s-indacen-8-yl ester