N-(2-((5aR,6R,9aS)-6-((tert-butyldimethylsilyl)oxy)-1-(2,2-dimethoxyethyl)-4-methoxy-6,7-dihydrodibenzo[b,d]furan-9a(5aH)-yl)ethyl)-N-methyl-2,4-dinitrobenzenesulfonamide

N-[2-[(5aR,6R,9aS)-6,7-dihydro-6-hydroxy-1-(2,2-dimethoxyethyl)-4-methoxy-9a(5aH)-dibenzofuranyl]ethyl]-N-methyl-2,4-dinitrobenzenesulfonamide

N-[2-[(5aR,9aS)-6,7-dihydro-1-(2,2-dimethoxyethyl)-4-methoxy-6-oxo-9a(5aH)-dibenzofuranyl]ethyl]-N-methyl-2,4-dinitrobenzenesulfonamide

N-(2-((3aR,3a1S,9aR)-9-hydroxy-5-methoxy-3-oxo-3,8,9,9a-tetrahydrophenanthro[4,5-bcd]furan-3a1(3aH)-yl)ethyl)-N-methyl-2,4-dinitrobenzenesulfonamide

N-(3-cyclopentenylpropyl)-N-methyl-2,4-dinitrobenzenesulfonamide