You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[2-(3,5-dioxo-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl)ethyl]-3-ethyl-2-(5,5,5-trifluoropentyl)guanidine by IUPAC nomenclature, provide its molecular formula.
user
C19H27F3N4O2
assistant