You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[[5-[[pyridin-2-ylmethyl-[(2,2,2-trifluoroacetyl)amino]amino]methyl]pyridin-2-yl]methyl]methanesulfonamide ?
user
C16H18F3N5O3S
assistant