(2R,4S,7R,8S,9R,11R)-1-Azido-9-(tert-butyl-dimethyl-silanyloxy)-7-hydroxy-8-(4-methoxy-benzyloxy)-2,4,11-trimethyl-14-triethylsilanyl-tetradec-13-yn-5-one

(4S,5R,7R)-5-((tert-butyldimethylsilyl)oxy)-3-hydroxy-4-((4-methoxybenzyl)oxy)-7-methyl-10-(triethylsilyl)dec-9-yne-1,2-diyl dibenzoate