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,8S,9S,10R,13S,14S,17R)-17-[(1R)-1-[(3R)-1-acetyl-3-hydroxy-3-methyl-2,4-dihydropyridin-6-yl]ethyl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate into molecular formula.
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C31H47NO4
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