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?? ???? >ethyl 17-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate
ethyl 17-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate
ethyl 17-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate ??
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ethyl 17-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate C??? ??, ??, ??
ethyl 17-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate ?? ?? ? ???
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ethyl 17-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate ?? ??
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