You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[(1S,2R)-1-hydroxy-1-(4-methoxyphenyl)-3-pyrrolidin-1-ylpropan-2-yl]-7-oxooctanamide into its molecular formula.
user
C22H34N2O4
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