You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methane;O-methyl 3-[(5S)-3-[3,5-difluoro-4-[2-(pyridin-3-ylmethylcarbamoyl)-1,2,5-oxadiazepan-5-yl]phenyl]-2-oxo-1,3-oxazolidin-5-yl]propanethioate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H31F2N5O5S
assistant