You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-but-2-ynyl-9-(2-methylpropyl)-N-propan-2-yl-3,10-diazatricyclo[6.4.1.04,13]trideca-1,4,6,8(13)-tetraene-11-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H31N3O
assistant