(3aR,5R,6aS,8S,10aR)-5-[(1S,2R,3R,4R,5R)-3-Bromo-2-methoxy-5-(4-methoxy-benzyloxy)-bicyclo[2.2.1]hept-2-yloxy]-8-(tert-butyl-dimethyl-silanyloxy)-4-methylene-octahydro-2-oxa-cyclopenta[d]naphthalen-3-one

(S)-3,4,8,8a-tetrahydro-8a-(hydroxymethyl)-1,6-(2H,7H)-naphthalenedione-1-ethylene acetal

(4aS,6S,8aS)-8a-(((2-(trimethylsilyl)ethoxy)methoxy)methyl)octahydro-2H-spiro[naphthalene-1,2'-[1,3]dioxolan]-6-ol