kokoononol 3-ethylele acetal

(4aS,6aR,6aR,8aR,9R,14bR)-14a-(羟基甲基)-2,2,4a,6a,6a,8a,9-七甲基-1,4,5,6,6b,7,8,9,11,12,12a,13,14,14b-十四氢苉-3,10-二酮

2α-bromofriedel-3-one

kokzeylanol diacetate

zealanol acetate