You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-chloro-4-(6-fluoro-4,6,7,8-tetrahydro-3H-isoquinolin-2-yl)-6-methylphenyl]-3,3-dimethylbutanamide;N-[2-chloro-4-(7-fluoro-4,6,7,8-tetrahydro-3H-isoquinolin-2-yl)-6-methylphenyl]-3,3-dimethylbutanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C44H56Cl2F2N4O2
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