You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-(5-methylfuran-2-yl)-1,11-diazapentacyclo[10.7.1.02,7.08,20.013,18]icosa-2,4,6,8(20),9,11,13,15,17-nonaen-19-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H14N2O2
assistant