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 5-[2-chloro-3-[2-chloro-3-[6-methoxy-5-[(5S)-5-methyl-4,5-dihydro-1H-imidazol-2-yl]pyrazin-2-yl]phenyl]phenyl]-3-methoxy-2-[(5S)-5-methyl-4,5-dihydro-1H-imidazol-2-yl]pyrazine .
user
C30H28Cl2N8O2
assistant