(3S,4S,5R)-1,4:2,5-diepoxy-3-phenylselanyl-1,2-secoeudesman-11-ol

methyl (3R,4R,5R,11S)-2-acetoxy-3,5-epoxy-1,4-dihydroxy-1,2-secoeudesman-13-oate

(R)-1-((2R,2aR,4aS,7R,8aR)-2-(((tert-butyldiphenylsilyl)oxy)methyl)-2a,4a-dimethyloctahydrooxeto[3,2-c]isobenzofuran-7-yl)ethan-1-ol

(3R,4R,5R)-2-tert-butyl(diphenyl)silyloxy-1,4:3,5-diepoxy-1,2-seco-12-noreudesman-11-one

(3R,4R,5R)-2-tert-butyl(diphenyl)silyloxy-1,4:3,5-diepoxy-1,2-secoeudesman-11-ol