{(2S,3R)-2-[(R)-(4-Methoxy-benzyloxy)-((4S,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-methyl]-5-oxo-tetrahydro-furan-3-yl}-acetic acid tert-butyl ester

(3R,4S,5R)-4-Formyloxy-3-iodomethyl-5-(4-methoxy-benzyloxy)-5-((4S,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-pentanoic acid tert-butyl ester

(3R,4S,5R)-4-Hydroxy-3-iodomethyl-5-(4-methoxy-benzyloxy)-5-((4S,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-pentanoic acid tert-butyl ester

(3R,4S,5R)-3-Iodomethyl-4-methoxy-5-(4-methoxy-benzyloxy)-5-((4S,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-pentanoic acid tert-butyl ester

N-Benzyl-N-[(S)-3-oxo-1-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-propyl]-acetamide