sphaerococcenol A

(4S)-8aα-Bromomethyl-4aα,4bβ,7,8,8a,9,10,10a-octahydro-4β-hydroxy-4,10aβ-dimethyl-8β-isopropylphenanthren-3(4H)-one

(4S)-8β-Isopropyl-4,10aβ-dimethyl-4β-hydroxy-8aα-(bromomethyl)-4aα,4bβ,7,8,8a,9,10,10a-octahydrophenanthrene-3(4H)-one

(4S)-4β-Hydroxy-4,10aβ-dimethyl-8β-isopropyl-8aα-(bromomethyl)-3,4,4aα,4bβ,7,8,8a,9,10,10a-decahydrophenanthrene-3-one