You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N'-tert-butyl-N-[(2S)-2-(1-methyl-2,3-dihydroindol-5-yl)-2-piperidin-1-ylethyl]oxamide is given. What is its corresponding molecular formula?
user
C22H34N4O2
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