(S)-4-((4S,5S)-5-(((tert-butyldiphenylsilyl)oxy)methyl)-2,2-dimethyl-1,3-dioxolan-4-yl)-4-methoxybutanoic acid

(S)-2-((tert-butyldiphenylsilyl)oxy)-1-((2S,3S)-3-methoxy-6-oxotetrahydro-2H-pyran-2-yl)ethyl pivalate

(S)-2-((tert-butyldiphenylsilyl)oxy)-1-((2S,3S,6R)-3-methoxy-6-(((3R,4S)-1-((4-methoxybenzyl)oxy)-4-methylhex-5-en-3-yl)oxy)-6-vinyltetrahydro-2H-pyran-2-yl)ethyl pivalate

(S)-2-((tert-butyldiphenylsilyl)oxy)-1-((2S,3S,6R,8R,9S)-3-methoxy-8-(2-((4-methoxybenzyl)oxy)ethyl)-9-methyl-1,7-dioxaspiro[5.5]undec-10-en-2-yl)ethyl pivalate

(S)-2-((tert-butyldiphenylsilyl)oxy)-1-((2S,3S,6R,8R,9S)-3-methoxy-9-methyl-8-(2-oxoethyl)-1,7-dioxaspiro[5.5]undec-10-en-2-yl)ethyl pivalate