(4S,5R)-4-(2,2-dibromovinyl)-5-ethyl-2,2,4-trimethyl-1,3-dioxolane

(2S,3R)-2,3-bis<(benzyloxy)methoxy>-2-methylpentanal

(2S,3R)-2-<(benzyloxy)methoxy>-3-<(tert-butyldimethylsilyl)oxy>-2-methylpentanol

(4S,5S)-5-ethyl-2,2,4-trimethyl-4-vinyl-1,3-dioxolane

(3R,4S,5R,6R,8R,10R,11R,12S,13R,14S)-3,4-bis<(benzyloxy)methoxy>-5,13-dihydroxy-10,11-(isopropylidenedioxy)-4,6,8,10,12,14-hexamethylhexadec-15-en-7-one