You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3H-dibenzofuran-3-id-4-yl)-4-methyl-3-phenylimidazo[4,5-c]pyridine;[4-(1,1-dideuterio-2,2-dimethylpropyl)-6-phenylpyridin-3-yl]-trimethylsilane;iridium is the IUPAC name of a molecule. Please give its molecular formula.
user
C44H42IrN4OSi-2
assistant