<(+/-)-(1α,2β,3α,4α,4aα,11bα)>-1,2,3,4,4a,11b-Hexahydro-3,4-dihydroxy-1-acetoxy-2-bromo-7-(phenylmethoxy)-6H-<1,3>benzodioxolo<5,6-c><1>benzopyran-2-one

N,N-Diethyl-<(tert-butyldimethylsilyl)oxy>-6-formyl-1,3-benzodioxole-5-carboxamide

N,N-Diethyl-4-<(tert-butyldimethylsilyl)oxy>-6-(1-hydroxy-3-butenyl)-1,3-benzodioxole-5-carboxamide

[1,3]Dioxolo[4,5-j]phenanthridin-6(2H)-one,1,3,4,4a,5,11b-hexahydro-1,2,3,4,7-pentahydroxy-,(1R,2S,3S,4S,4aR,11bR)-rel-