You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,5S,7S)-7-iodo-6,6-dimethyl-3-(4-methylphenyl)-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H20INO
assistant