You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[2-(3,4-dihydro-1H-isoquinolin-2-yl)-2-oxoethyl]-2-methyl-3-[[4-methyl-2-(2,2,2-trifluoroethoxy)phenyl]methyl]guanidine by IUPAC nomenclature, provide its molecular formula.
user
C23H27F3N4O2
assistant