You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-[(2S)-2-[4-[(2S,3S,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-17-[(1R)-1-hydroxyethyl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-2-yl]piperazine-1-carbonyl]pyrrolidine-1-carbonyl]chromen-4-one into molecular formula.
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C40H55N3O6
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