7α-hydroxy-1,4aβ-dimethyl-3,4,4a,7,8,8aα-hexahydronaphthalene

4aβ,8-dimethyl-4a,5,6,8aα-tetrahydro-2<1H>-naphthalenone

5,8aβ-dimethyl-4aα,7,8,8a-tetrahydro-1<4H>-naphthalenone

2α,3α-epoxy-5,8aβ-dimethyl-2,3,4aα,7,8,8a-hexahydro-1<4H>-naphthalenone