You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N,2-dihydroxy-N'-[1-(methylamino)-1-oxo-3-phenylpropan-2-yl]-3-(2-phenylethyl)butanediamide into its molecular formula.
user
C22H27N3O5
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