(2R,3S,4S)-7-Benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-2,4-dimethyl-heptanal

(3S,6R,7S,8S)-11-(benzyloxy)-3,7-bis{[(tert-butyl)dimethylsilyl]oxy}-4,4,6,8-tetramethyl-5-oxoundecanoic acid methyl ester

(6R,7S,8S)-11-Benzyloxy-7-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-4,4,6,8-tetramethyl-5-oxo-undecanoic acid methyl ester

(5R,6S,7S)-10-(benzyloxy)-6-(tert-butyldimethylsilyloxy)-3,3,5,7-tetramethyldec-1-en-4-one

(5S,6S,7S)-10-Benzyloxy-6-(tert-butyl-dimethyl-silanyloxy)-3,3,5,7-tetramethyl-dec-1-en-4-ol