You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(2S)-butan-2-yl]-3-[5,7-dimethyl-2-[(2R)-1-propanoylpyrrolidin-2-yl]pyrazolo[1,5-a]pyrimidin-6-yl]propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H33N5O2
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