(3S,7R)-9-benzyloxy-6-hydroxy-3-(4-methoxybenzyl)oxy-7-triethylsilyloxy-1-{2-[4-(triethylsilyloxy)butyl]-1,3-dithian-2-yl}nonan-4-one

(Z)-(3S,7R)-9-Benzyloxy-3-(4-methoxy-benzyloxy)-7-triethylsilanyloxy-1-[2-(4-triethylsilanyloxy-butyl)-[1,3]dithian-2-yl]-non-5-en-4-one

1-[10-(2-benzyloxy)ethyl-13-(tert-butyldimethylsilyl)oxy-13-methyl-1,7,9-trioxadispiro[5.1.5.2]pentadec-2-yl]-5-(tert-butyldimethylsilyl)oxy-5-[5-(tert-butyldiphenylsilyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]-4-methylpentan-2-one