You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(5S,6S,8R,10S)-9,9-dimethyl-5-(1,3,6-trimethyl-2-oxobenzimidazol-5-yl)-4-oxatricyclo[6.2.1.01,6]undecan-10-yl]propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H35N3O3
assistant