(1R,2S)-2-methyl-1-[(1R,3S,6R,7S,8S,9S)-6,8,10-tris(tert-butyldimethylsilanyloxy)-1,3,7,9-tetramethyldecyl]but-3-enyl-(2R,3S,5S)-3,5-bis(tert-butyldimethylsilanyloxy)-2-methylhept-6-enoate

(3R,4S,6R)-3,4-bis(triisopropylsilyloxy)tridec-1-en-6-yl (S)-3-(tert-butyldimethylsilyloxy)pent-4-enoate