(4aS,10aR,10bS)-2,3,7,8,10a,10b-Hexahydro-4a,7,7,10-tetramethyl-1H-naphtho<2,1-b>pyran-5(4aH)-one

Chloro-acetic acid (1S,2S,4R)-5,8,8-trimethyl-bicyclo[2.2.2]oct-5-en-2-yl ester

(-)-(1S,4R)-5,8,8-Trimethylbicyclo<2.2.2>oct-5-en-2-one

(4aS,10aR,10bS)-2,3,7,8,10a,10b-Hexahydro-7,7,10a-trimethyl-1H-naphtho<2,1-b>pyran-5(4aH)-one

(4aR,10aR,10bS)-2,3,7,8,10a,10b-Hexahydro-7,7,10a-trimethyl-1H-naphtho<2,1-b>pyran-5(4aH)-one