You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[3-[2-[[4-[6-(dimethylamino)-2-methyl-1-oxo-2,7-naphthyridin-4-yl]-2,6-dimethoxyphenyl]methyl]-2,7-diazaspiro[3.5]nonan-7-yl]-3-methylbut-1-ynyl]-2-(2,6-dioxopiperidin-3-yl)isoindole-1,3-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C45H49N7O7
assistant