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 (R)-[(2S)-5-ethenyl-1-[(4-nitrophenyl)methyl]-1-azoniabicyclo[2.2.2]octan-2-yl]-(6-methoxyquinolin-4-yl)methanol;hydrochloride ?
user
C27H31ClN3O4+
assistant