(2S,3R,4R,5R)-2-Hydroxymethyl-5-[2-((3aR,4S,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-ethyl]-pyrrolidine-3,4-diol

Acetic acid (1R,2R,3S,6R,7aR)-2-acetoxy-6-tert-butoxycarbonylamino-3-(4-methoxy-phenoxymethyl)-5-oxo-hexahydro-pyrrolizin-1-yl ester

(2S,3R,4R,5R)-1-Benzyl-3,4-bis-benzyloxy-2-benzyloxymethyl-5-[(Z)-2-((3aR,4S,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-vinyl]-pyrrolidine

(2S,3R,4R,5R)-1-Benzyl-3,4-bis-benzyloxy-2-benzyloxymethyl-5-[2-((3aR,4S,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-ethyl]-pyrrolidine

(2S,3R,4R,5S)-1-Benzyl-3,4-bis-benzyloxy-5-(4-methoxy-phenoxymethyl)-pyrrolidine-2-carbaldehyde