(2R,3S,4R)-5-(tert-butyldiphenylsilyloxy)-2-hydroxymethyl-1,3-[(R)-3,4-dimethoxybenzylidenedioxy]-4-methylpentane

2,2-Dimethyl-propionic acid (E)-(2R,3S,6R)-7-(tert-butyl-diphenyl-silanyloxy)-2-[(1S,2R)-3-(tert-butyl-diphenyl-silanyloxy)-1-(3,4-dimethoxy-benzyloxy)-2-methyl-propyl]-3-hydroxy-4,6-dimethyl-hept-4-enyl ester

(2R,3E,5S,6S,7S,8R)-6-(tert-butyldimethylsilyloxymethyl)-1,9-di(tert-butyldiphenylsilyloxy)-7-(3,4-dimethoxybenzyloxy)-2,4,8-trimethyl-3-nonen-5-ol