α-紫罗兰酮

(E)-4-(2',6',6'-trimethylcyclohex-2'-enyl)but-3-en-2-one ethylene ketal

(rac)-(E)-4-(4-hydroxy-2,6,6-trimethyl-2-cyclohexen-1-yl)-2,2-ethylenedioxy-3-butene

(-)-(R)-all-trans-3-(tert-butyldimethylsilyloxy)retinol