(2S,5aS,2aR,5bR)-2,8-dihydroxy-4,4-dimethyl-2,6,2a,5a,5b-pentahydro-10H-1,3-dioxolano(4,5-c)1,3-dioxoleno(4,5-j)phenanthridin-7-one

(2S,3S,4R,4aR)-5-(t-butoxycarbonyl)-2-((t-butyldimethylsilyl)oxy)-7-(o-carbamoyloxypiperonyl)-3,4-(isopropylidenedioxy)-8,9-(methylenedioxy)-2,3,4,4a-tetrahydrophenanthridone

2,4-Cyclohexadien-1-carbonsaeure-methylester

bromo-5 hydroxy-4 benzodioxole-1,3

methyl 2-hydroxy-7-oxabicyclo[4.1.0]hept-3-ene-4-carboxylate