You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-methyl-1-[(2S)-1-(4-methylpyridin-2-yl)propan-2-yl]-3-[[4-(2-oxopyrrolidin-1-yl)phenyl]methyl]urea into its molecular formula.
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C22H28N4O2
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