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 N-(3-cyano-4-fluorophenyl)-4-oxa-3,10,11,15-tetrazatetracyclo[8.7.0.02,6.012,17]heptadeca-1(17),2,5,11-tetraene-15-carboxamide .
user
C20H17FN6O2
assistant