(8E,10E,14Z,16E,20Z)-(3S,4R,5S,7R,13R,18R)-4,18,22-Tris-(tert-butyl-dimethyl-silanyloxy)-15-ethyl-3,5,7,9,13-pentamethyl-docosa-8,10,14,16,20-pentaen-6-one

(8E,10E,14Z,16E,20Z)-(3S,4R,5R,6R,7R,13R,18R)-4,18,22-Tris-(tert-butyl-dimethyl-silanyloxy)-15-ethyl-3,5,7,9,13-pentamethyl-docosa-8,10,14,16,20-pentaen-6-ol