You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by N-[[3-[3-fluoro-4-[4-[[6-(4-hydroxybutylamino)purin-9-yl]methyl]phenyl]phenyl]-2-oxo-1,3-oxazolidin-5-yl]methyl]acetamide ?
user
C28H30FN7O4
assistant