You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 7-methyl-N-propan-2-yl-2-(pyridine-2-carbonyl)-2,7-diazaspiro[3.4]octane-6-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C17H24N4O2
assistant