19,25-epoxy-cheilantha-13(24),17(25),18-trien-(16S)-ol

19,25-epoxy-cheilantha-13(24),17(25),18-trien-(16R)-ol

16R-acetoxy-19,25-epoxy-cheilantha-13(24),17(25),18-triene

Acetic acid (R)-2-((1R,4aS,4bS,8aS,10aS)-2-formyl-4b,8,8,10a-tetramethyl-tetradecahydro-phenanthren-1-yl)-1-(2-hydroxy-5-oxo-2,5-dihydro-furan-3-yl)-ethyl ester

(16R)-acetoxy-(25R/S)-hydroxy-cheilantha-13(24),17-dien-19,25-olide