6,6-dimethyl4-methylidenebicyclo[3.1.1]hept-2-ene

norbornane, 7,7-dimethyl-2-methylene-

(1R,2R,4S)-3,3,4-trimethylbicyclo[2.2.1]heptan-2-yl acetate

(6,6-二甲基双环[3.1.1]庚-2-烯-2-基)甲基乙酸酯

左旋乙酸冰片酯