[1R]-1-methyl-1(3-pentanone)-3-ethylenedioxy-2-oxocyclohexanone

N-{(R,S)-9-methyl-1,4-dioxaspiro[4.5]decan-8-yliden}-(R)-1-phenylethylamine

(R)-5',8'a-Dimethyl-1',3',4',7',8',8'a-hexahydrospiro[[1,3]-dioxolane-2,2'-naphthalen]-6'-one

(4aR,8aR)-3-[1-Hydroxy-meth-(E)-ylidene]-5,8a-dimethyl-3,4,4a,7,8,8a-hexahydro-1H-naphthalen-2-one

(3R,4aS,8aR)-3-Isopropyl-5,8a-dimethyl-3,4,4a,7,8,8a-hexahydronaphthalen-2(1H)-one