You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-[2-(2-fluoro-4-methoxyphenyl)ethyl]-4-oxoquinazolin-7-yl]-1-(2-hydroxypropyl)-1-[(1R,2S,3S,5S)-2,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl]guanidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H40FN5O3
assistant