(2R,6aS,10aR,10bS)-2-(furan-3-yl)-9-methoxy-6a-methyl-10a-[(S)-(toluene-4-sulfinyl)]-6,6a,10a,10b-tetrahydro-1H-benzo[f]isochromene-7,10(2H,4H)-dione

(2S,6aS,10aR,10bS)-10a-[(S)-(toluene-4-sulfinyl)]-9-methoxy-6a-methyl-2-phenyl-6,6a,10a,10b-tetrahydro-1H-benzo[f]isochromene-7,10(2H,4H)-dione

(R)-2-methoxy-4a,8-dimethyl-7-trimethylsilanyloxy-4a,5-dihydro-[1,4]naphthoquinone

(2S,6aS,10aR,10bS)-2-(furan-2-yl)-9-methoxy-6a-methyl-10a-((S)-p-tolylsulfinyl)-1,4,6,6a,10a,10b-hexahydro-2H-benzo[f]isochromene-7,10-dione