3-((3E,7E,11E,15E)-4,8,12,16-tetramethylnonadeca-3,7,11,15-tetraen-18-yn-1-yl)furan

((5E,9E,13E,17E)-20-(furan-3-yl)-5,9,13,17-tetramethylicosa-5,9,13,17-tetraen-1-yn-1-yl)trimethylsilane