(1R,2R,5S,7R)-2,8,8,三甲基-3-氮杂三环[5.1.1.0(2,5)]壬烷-4-酮

3,5-dimethyl-1,3,5-oxadiazinane-2,4,6-trione

hept-2-ynamide

5,5-dimethyl-4-phenyl-1,3-oxazol-2-one

环丁腈