(Z)-methyl trans-4,5-(isopropylidenedioxy)-2-hexenoate

(S)-5-(tert-Butyl-dimethyl-silanyloxy)-4-methyl-1-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-pent-1-yn-3-one

(1S,4S,5R,6R,8R)-8-(tert-Butyl-dimethyl-silanyloxy)-5-(4-methoxy-benzyloxymethyl)-6-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-bicyclo[2.2.2]octan-2-one

2,2-Dimethyl-propionic acid (1S,2R,3R,4S,7R)-5-oxo-7-p-tolyloxythiocarbonyloxy-3-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-bicyclo[2.2.2]oct-2-ylmethyl ester

(S)-5-[(R)-(4-Methoxy-benzyloxy)-((4S,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-methyl]-5H-furan-2-one