You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-[5-chloro-2-(tetrazol-1-yl)phenyl]-N-[(15S)-5-fluoro-9-oxo-8,17-diazatricyclo[14.3.1.02,7]icosa-1(20),2(7),3,5,16,18-hexaen-15-yl]prop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H25ClFN7O2
assistant