6-ethyl-6-methyl-4-phenyl-2,5-dihydropyran

6-ethyl-6-methyl-4-phenyl-3,6-dihydro-2H-pyran

2-butan-2-ylpropanedinitrile

1-phenyl-hexane-2,4-dione

1-甲基-2,2-二苯基乙烯