You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-aminospiro[1,2,5,7-tetrahydrocyclopenta[b]pyridine-6,3'-3aH-pyrrolo[2,3-b]pyridine]-2'-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H14N4O
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