Acetic acid (2R,3R,4R,6R)-3-acetoxy-6-((R)-3-benzyloxy-8-hydroxy-3-methyl-1,7,12-trioxo-1,2,3,4,7,12-hexahydro-benzo[a]anthracen-9-yl)-2-methyl-tetrahydro-pyran-4-yl ester

(1R,5R)-5-Benzyloxy-5-methyl-3-vinyl-cyclohex-2-enol

((1R,5R)-5-Benzyloxy-5-methyl-3-vinyl-cyclohex-2-enyloxy)-triisopropyl-silane

Acetic acid (1R,3R,6aS,12aR,12bR)-3-benzyloxy-12a-bromo-3-methyl-7,12-dioxo-1-triisopropylsilanyloxy-1,2,3,4,6,6a,7,12,12a,12b-decahydro-benzo[a]anthracen-8-yl ester