You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(6S,8S,9R,10S,11S,13S,14S,16R,17R)-6,9-difluoro-17-(fluoromethylsulfanylcarbonyl)-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-yl] pentanoate by IUPAC nomenclature, provide its molecular formula.
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C27H35F3O5S
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