(2R,3S,9S,10R)-2-(tert-Butyl-dimethyl-silanyloxy)-1,11-bis-(4-methoxy-benzyloxy)-3,9-dimethyl-10-triethylsilanyloxy-undecan-6-one

(4S,5R)-6-(4-Methoxy-benzyloxy)-4-methyl-5-triethylsilanyloxy-hexanoic acid methoxy-methyl-amide