2,2:5,5-bis(ethylenedioxy)-cis-8-undecene

methyl 4,4:7,7-bis(ethylenedioxy)octanoate

cis-N,N'-dimethyl-2,5-dioxo-8-undecene-4,6-disulfonanilide

甲基庚烯酮

3-甲基-2-(3-甲基-2-丁烯-1-基)-2-环戊烯-1-酮