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-(3,5-difluorophenyl)-N-ethyl-1-(3-methoxy-5-propoxyphenyl)-4-oxo-7-[7-(4-phenyl-1-azoniabicyclo[2.2.2]octan-1-yl)heptoxy]quinoline-3-carboxamide ?
user
C48H56F2N3O5+
assistant