2,10-bis-(tert-butyl-dimethyl-silanyloxy)-6-hydroxy-17-iodo-1,12-dimethoxy-5,7-dimethyl-4,9,13-tris-triethylsilanyloxy-octadec-16-en-8-one

(2S,3R,5R)-5-(t-butyldimethylsilyloxy)-6-methoxy-2-methyl-3-(triethylsilyloxy)hexanal