6-[4-(tert-butyl-diphenyl-silanyloxymethyl)-2-methyl-pent-4-enyl]-4-hydroxy-tetrahydro-pyran-2-one

9-(tert-butyl-diphenyl-silanyloxymethyl)-3,5-dihydroxy-7-methyl-dec-9-enoic acid

4-{6-[4-(tert-butyl-diphenyl-silanyloxymethyl)-2-methyl-pent-4-enyl]-5,6-dihydro-2H-pyran-2-yl}-but-2-enoic acid methyl ester