methyl 7-methyl-3-oxooct-6-enoate

2,2-二甲基-6-氧代环己烷羧酸甲酯

4a-carbomethoxy-4,4a,5,6,7,8-hexahydro-5,5-dimethyl-2(3H)-naphthalenone

3-allyl-5,5-dimethyl-5,6,7,8-tetrahydro-4a,8a-methanonaphthalen-2(1H)-one

methyl 5,5-dimethyl-5,6,7,8-tetrahydronaphtho[2,3-b]furan-4a(4H)-carboxylate