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 (10E)-10-(dimethylaminomethylidene)-2,4,14-triazatricyclo[9.4.0.03,8]pentadeca-1(11),3(8),4,6,12,14-hexaen-9-one .
user
C15H14N4O
assistant