环庚三烯酮

7-butyl-3-methoxycyclohepta-1,3,5-triene

3-methoxycyclohepta-2,4,6-trien-1-one

4-甲氧基-2,4,6-环庚三烯-1-酮

2-ethyldimethylsilylcyclohepta-2,4,6-trien-1-one