9-(tert-butyl-dimethyl-silanyloxy)-5-hydroxy-7-(4-methoxy-benzyloxy)-8,8-dimethyl-3-oxo-nonanoic acid methyl ester

9-(tert-butyl-dimethyl-silanyloxy)-3,5-dihydroxy-7-(4-methoxy-benzyloxy)-8,8-dimethyl-nonanoic acid methyl ester