(S)-5-hydroxy-6-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hex-2-ynoic acid methyl ester

E-7-(tert-butyl-dimethyl-silanyloxy)-3-[2-hydroxy-3-(2,2,5-trimethyl-[1,3]dioxolan-4-yl)-propyl]-6,6-dimethyl-hept-2-en-4-ynoic acid methyl ester

methyl (E)-2-((2S,6S)-2-(1-((tert-butyldimethylsilyl)oxy)-2-methylpropan-2-yl)-2-methoxy-3-oxo-6-(((4R,5R)-2,2,5-trimethyl-1,3-dioxolan-4-yl)methyl)tetrahydro-4H-pyran-4-ylidene)acetate

4-(tert-butyl-dimethyl-silanyloxy)-3,3-dimethyl-butan-2-one

4-[4-acetoxy-6-methoxy-6-(4-methoxycarbonylmethylene-6-vinyl-tetrahydro-pyran-2-ylmethyl)-5,5-dimethyl-tetrahydro-pyran-2-yl]-3-hydroxy-butyric acid