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 [[2-(4-amino-2,6,7-trimethylimidazo[4,5-c]pyridin-1-yl)ethyl-ethylcarbamoyl]-ethylamino]phosphonic acid .
user
C16H27N6O4P
assistant