You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 5,15-dimethyl-9-[2-(5-methylpyridin-3-yl)ethyl]-9,15-diazatetracyclo[10.2.1.02,10.03,8]pentadeca-2(10),3(8),4,6-tetraene .
user
C23H27N3
assistant