You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[4-[6-[2-(5-fluoro-2,7-dimethyl-1-benzothiophen-3-yl)ethylamino]pyrimidin-4-yl]-2-methoxyphenyl]-1,2-oxazol-3-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H23FN4O3S
assistant