You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-[[4-[3-(2,2-difluoro-2-iodoethyl)-2-oxobenzimidazol-1-yl]pyrimidin-2-yl]amino]-2-[2-(dimethylamino)ethyl-methylamino]-4-methoxyphenyl]prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H31F2IN8O3
assistant