You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-(2,2-diethyl-4-hydroxybutyl)-3-ethyl-2-[(6-propoxypyridin-3-yl)methyl]guanidine;hydroiodide .
user
C20H37IN4O2
assistant