You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-fluoro-6-(4-fluoro-2-methyl-1-propan-2-ylindol-5-yl)oxy-N-(5-piperazin-1-ylpyridin-2-yl)pyrimidin-4-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H27F2N7O
assistant