You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[3-methyl-2-(3-methyl-1,2-oxazol-5-yl)butanoyl]-N-[[4-(4-methyl-1,3-oxazol-5-yl)phenyl]methyl]pyrrolidine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H30N4O4
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