(2E,4E,6E,8E,10E,12S,13S,15R)-12,13,15-tris(tert-butyldimethylsilyloxy)-4,6,10-trimethylhexadeca-2,4,6,8,10-pentaenoic acid

(2E,4Z,6E,8E,10E,12S,13S,15R)-12,13,15-tris(tert-butyldimethylsilyloxy)-4,6,10-trimethylhexadeca-2,4,6,8,10-pentaenoic acid