1-(3-methylcyclohex-2-en-1-yl)ethanone

4-乙酰基-1-甲基-环己烯

1,1-dibromo-2-ethenyl-2-methylcyclopropane

3,6a-dimethyl-2,3,3a,4,5,6-hexahydro-1H-pentalene

dimethyl 2-ethenyl-2-methylcyclopropane-1,1-dicarboxylate