You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named methyl 3-[[(5-ethyl-1,2-oxazole-3-carbonyl)amino]methyl]-5-[(4-fluorobenzoyl)amino]benzoate by IUPAC nomenclature, provide its molecular formula.
user
C22H20FN3O5
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