You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [(1S,14S,19S)-3,13-diazapentacyclo[11.8.0.02,10.04,9.014,19]henicosa-2(10),4,6,8,17-pentaen-17-yl]methanol .
user
C20H24N2O
assistant