You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-(cyanomethyl)-1-[(3-methoxycyclobutyl)methyl]piperidin-4-yl]-3-[(2-fluoropyridin-4-yl)amino]pyrazole-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H28FN7O2
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