(S)-4-((2S,4R)-4-((tert-butyldiphenylsilyl)oxy)-6-oxotetrahydro-2H-pyran-2-yl)-3-((4-methoxybenzyl)oxy)-2,2-dimethylbutanal

6-[4-(tert-butyl-dimethyl-silanyloxy)-2-(4-methoxy-benzyloxy)-3,3-dimethyl-butyl]-4-hydroxy-tetrahydropyran-2-one

6-[4-(tert-butyl-dimethyl-silanyloxy)-2-(4-methoxy-benzyloxy)-3,3-dimethyl-butyl]-4-[(1,1-dimethyl-ethyl)-diphenyl-silanyloxy]-tetrahydropyran-2-one

4-(tert-butyl-diphenyl-silanyloxy)-6-[4-hydroxy-2-(4-methoxy-benzyloxy)-3,3-dimethyl-butyl]-tetrahydropyran-2-one

(4R,6S)-4-((tert-butyldiphenylsilyl)oxy)-6-((2S)-4-hydroxy-2-((4-methoxybenzyl)oxy)-3,3-dimethylhept-6-en-1-yl)tetrahydro-2H-pyran-2-one