You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 3-[[(1R,2R,3S)-2,3-dimethylcyclohexyl]amino]-4-(3,4-dimethylphenyl)cyclobut-3-ene-1,2-dione is given. What is its corresponding molecular formula?
user
C20H25NO2
assistant