You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (3R,4R)-3-methyl-2,6-dioxo-N-[3-(2-oxopyrrolidin-1-yl)propyl]-7-azatricyclo[6.4.0.03,5]dodeca-1(12),8,10-triene-4-carboxamide ?
user
C20H23N3O4
assistant