联苯

2-benzhydryl-1,3,5-triphenyl-pentane-1,5-dione

3-氰基-2-乙氧基-4,6-二苯基吡啶

3-氰基-2-甲氧基-4,6-二苯基吡啶

1,2,3,5-tetraphenylpentane-1,5-dione