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 1,7,15-triethyl-3,9,13-triphenyl-2,3,8,9,13,14-hexazatrispiro[4.0.46.0.411.05]pentadeca-1,7,14-triene-4,10,12-trione .
user
C33H30N6O3
assistant