You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 2-[4-[2-[4-(3-ethyl-4-methyl-5-oxo-1,2,4-triazol-1-yl)-5-fluoro-2-pent-4-en-2-yloxyphenyl]-2-oxoethyl]-3-methylphenyl]acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H38FN3O5
assistant