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 14,19,21,27-tetrazaheptacyclo[15.10.0.02,11.05,10.012,16.018,26.020,25]heptacosa-1(17),2(11),3,5,7,9,12(16),18(26),20(25),21,23-undecaene-13,15-dione .
user
C23H12N4O2
assistant