You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1S,8S)-16,16-diethoxy-13-methoxy-15,15-dimethyl-2-azoniatetracyclo[6.6.2.02,7.09,14]hexadeca-2,4,6,9(14),10,12-hexaene into molecular formula.
user
C22H28NO3+
assistant