英文名称
3,5-dichloro-2-[3-[2-[3-[4-(6-chloro-5-methylpyridazin-3-yl)oxy-2-[2,2,6-trimethyl-6-[3-[4-(6-methylpyridazin-3-yl)oxy-2-(2,2,6,6-tetramethyl-3,5-dioxooxan-4-yl)phenyl]propyl]-3,5-dioxooxan-4-yl]phenyl]propyl]-2,6,6-trimethyl-3,5-dioxooxan-4-yl]-4-ethylphenoxy]-6-oxo-1H-pyridine-4-carbonitrile