You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N'-[1-[5-(trifluoromethyl)pyridin-2-yl]piperidine-4-carbonyl]-1H-indole-3-carbohydrazide using the IUPAC nomenclature.
user
C21H20F3N5O2
assistant