You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2,4-difluoro-3-[[3-[9-(oxan-2-yl)purin-6-yl]pyridin-2-yl]amino]phenyl]-1-methylindole-5-sulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H26F2N8O3S
assistant