Formic acid (R)-1-((S)-2-acetyl-oxiranyl)-2-((1R,2R,4aS,8aS)-5-formyl-1,2,4a-trimethyl-1,2,3,4,4a,7,8,8a-octahydro-naphthalen-1-yl)-ethyl ester

((1R,2R,4aS,8aS)-1,2,4a-Trimethyl-5-oxo-decahydro-naphthalen-1-yl)-acetic acid ethyl ester

ethyl 2-((4aS,5R,6R,8aS)-5,6,8a-trimethyloctahydro-2H-spiro[naphthalene-1,2'-[1,3]dioxolan]-5-yl)acetate

15-deoxoclerocidin

((1R,2R,4aS,8aS)-5-Formyl-1,2,4a-trimethyl-1,2,3,4,4a,7,8,8a-octahydro-naphthalen-1-yl)-acetic acid ethyl ester