You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[4-(difluoromethoxy)-3-methoxyphenyl]-1,2,4-oxadiazol-5-yl]methyl 1-propylsulfonylpyrrolidine-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H23F2N3O7S
assistant