methyl (3R,4R,5S)-4-(tert-butyldimethylsiloxy)-6-hydroxy-3,5-dimethylhexanoate

(E)-(6R,7S,8S)-7-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethoxy-4,6,8-trimethyl-11-trimethylsilanyl-undec-4-en-10-ynoic acid