2-[(2R,3S,6R,8R,9S)-9-Methoxy-8-(4-methoxy-benzyloxymethyl)-3-methyl-1,7-dioxa-spiro[5.5]undec-4-en-2-yl]-ethanol

(4S,5R)-7-(tert-Butyl-dimethyl-silanyloxy)-4-methyl-5-triethylsilanyloxy-heptanoic acid methoxy-methyl-amide

(2S,3R,9S,10R)-1-Benzyloxy-12-(tert-butyl-dimethyl-silanyloxy)-3,9-dimethyl-2,10-bis-triethylsilanyloxy-dodecan-6-one