(R)-4-(tert-Butyl-dimethyl-silanyloxy)-4-[(S)-1-(4-methoxy-benzyloxy)-3-trimethylsilanyl-prop-2-ynyl]-octanal

(3R,4S,10R)-1,10-Bis-(tert-butyl-dimethyl-silanyloxy)-3-(4-methoxy-benzyloxy)-10-[(S)-1-(4-methoxy-benzyloxy)-3-trimethylsilanyl-prop-2-ynyl]-4-methyl-tetradecan-7-one