(2S,3S,4S,7S,9S,10S)-7,9-bis(tert-butyldimethylsilanyloxy)-3-(4-methoxybenzyloxy)-2,4,10-trimethyl-13-trityloxytrideca-5,11-dien-1-ol

(4S,5R,6S,9S,11S,12S)-9,11-bis(tert-butyldimethylsilanyloxy)-5-(4-methoxybenzyloxy)-4,6,12-trimethyl-15-trityloxypentadeca-7,13-dienoic acid ethyl ester

(4R,5S,7S)-5,7,8-tris(tert-butyldimethylsilanyloxy)-4-methyloct-2-enoic acid ethyl ester

(4R,5S,7S)-5,7-bis(tert-butyldimethylsilanyloxy)-8-hydroxy-4-methyloct-2-enoic acid ethyl ester

5(S),7(S)-bis(tert-butyldimethylsilanyloxy)-10(S)-[2(R)-(4-methoxyphenyl)-5(S)-methyl[1,3]dioxan-4(S)-yl]-4(S)-methylundeca-2,8-dienoic acid ethyl ester