(E)-(2R,5S,7S)-10-Benzenesulfonyl-5-(tert-butyl-dimethyl-silanyloxy)-7-methoxy-2,8-dimethyl-dec-8-enoic acid methyl ester

(E)-(2R,5S)-10-Benzenesulfonyl-5-benzyloxy-2,8-dimethyl-7-oxo-dec-8-enoic acid ethyl ester