33767-08-7 5-[2-(11,17-dihydroxy-10,13-dimethyl-3-oxo-2,6,7,8,9,11,12,14,15,16-decahydro-1h-cyclopenta[a]phenanthren-17-yl)-2-oxoethoxy]-5-oxopentanoic Acid 38123-26-1 (2S,16S,17S,18R,19R,20R,21S,22R,23S,24E)-9-[2-(1-butyl-2,2-dipropylhydrazino)-2-oxoethoxy]-5,6,17,19-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,11-dioxo-1,2-dihydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-b]furan-21-yl acetate [3