(6S,7S,12R,E)-12-((2S,6R,7R,9R,E)-7,9-bis((tert-butyldimethylsilyl)oxy)-4,6-dimethyldec-4-en-2-yl)-7-methyl-2-oxooxacyclododec-9-en-6-yl (2E,6E,8E,10E,13R,15S)-13,15-bis((tert-butyldimethylsilyl)oxy)-4,6,10-trimethylhexadeca-2,4,6,8,10-pentaenoate

(5S,6S)-((2S,3R)-2-methyl-1-(tosyloxy)hex-5-en-3-yl) 5-(tert- butyldimethylsilyloxy)-6-methylnon-8-enoate

(2S)-2-((2R,7S,8S,E)-8-(tert-butyldimethylsilyloxy)-7-methyl-12-oxo-1-oxacyclododec-4-en-2-yl)propyl-4-methylbenzene-1-sulfonate

(6S,7S,9E,12R)-12-[(2S,4E,6R,7R,9R)-7,9-bis[(tert-butyldimethylsilyl)oxy]-4,6-dimethyldec-4-en-2-yl]-6-[(tert-butyldirnethylsilyl)oxy]-7-methyl-1-oxacyclododec-9-en-2-one

(6S,7S,9E,12R)-12-[(2S,4E,6R,7R,9R)-7,9-bis[(tert-butyldimcthylsilyl)oxy]-4,6-dimethyldec-4-en-2-yl]-6-hydroxy-7-methyl-1- oxacyclododec-9-en-2-one