(4R,5R,8R,9S,12R,13S)-12,13-dihydroxy-9-mesyloxy-5,8-oxidotricosa-1,4-olide

(4R,5R,8R,9S,12R,13S)-12,13-isopropylidenedioxy-9-mesyloxy-5,8-oxidotricosa-1,4-olide

(cis,4R,5R,12R,13S)-5-tert-butyldiphenylsilyloxytricosa-12,13-isopropylidenedioxy-8-en-1,4-olide

(R)-5-[(Z)-(S)-1-(tert-Butyl-diphenyl-silanyloxy)-7-((4R,5S)-5-decyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-hept-4-enyl]-dihydro-furan-2-one

(R)-5-[(Z)-(S)-1-(tert-Butyl-diphenyl-silanyloxy)-7-((4R,5R)-5-decyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-hept-4-enyl]-dihydro-furan-2-one