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-dien-1-ol

4(S)-[4(S),6(S)-bis(tert-butyldimethylsilanyloxy)-1(S),7(S)-dimethyl-10-trityloxydeca-2,8-dienyl]-2(R)-(4-methoxyphenyl)-5(S)-methyl[1,3]dioxane

4(S)-benzyl-3-[9(S),11(S)-bis(tert-butyldimethylsilanyloxy)-5(R)-(4-methoxybenzyloxy)-4(S),6(S),12(S)-trimethyl-15-trityloxypentadeca-7,13-dienoyl]oxazolidin-2-one

6-(2,2-dimethyl[1,3]dioxolan-4(S)-yl)-5(S)-hydroxy-4(R)-methylhex-2-enoic acid ethyl ester

(4R)-4-benzyl-3-{(2R,3S)-4-[(1S)-2,2-dimethyl-[1,3]-dioxolan-4-yl]-3-hydroxy-2-methylbutyryl}oxazolidin-2-one