4,4-二甲基-2-咪唑烷硫酮

1-(3,3-dimethyl-1,4,8-triazaspiro[4.5]decan-8-yl)ethanone

2,5,5-trimethyl-1,4-dihydroimidazole

5,6,7,8-四氢-5,5-二甲基-3-(三氟甲基)-1,2,4-噻唑[4,3-A]吡嗪

(Z)-3,3,6,6-四甲基-哌嗪酮肟