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 (2R)-4-butyl-2-methyl-4,7,17-triazatetracyclo[8.7.0.02,7.011,16]heptadeca-1(10),11,13,15-tetraene-3,6-dione .
user
C19H23N3O2
assistant