You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (3S,10R,13S,16E)-16-[[4-[2-(diethylamino)ethoxy]-3-methoxyphenyl]methylidene]-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15-decahydro-1H-cyclopenta[a]phenanthren-17-one into molecular formula.
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C33H47NO4
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