You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(1,2,3,3a,4,5,6,6a-octahydrocyclopenta[c]pyrrol-5-yl)-1-[1-[(4-chloro-2-fluorophenyl)methyl]-3-(trifluoromethyl)-5,7-dihydro-4H-pyrazolo[3,4-c]pyridin-6-yl]ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H25ClF4N4O
assistant