You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-ethyl-2-[3-(2-methylpiperidin-1-yl)propyl]-3-[2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)ethyl]guanidine .
user
C20H33N7
assistant