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![（1R,4R）-2,5-二苯基二环[2.2.2]辛-2,5-二烯](http://hg.y866.cn/compound/lib/scimg/cas/150/796966-15-9.png "（1R,4R）-2,5-二苯基二环[2.2.2]辛-2,5-二烯")
