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 N-[2-(6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl)-2-oxoethyl]-4-(3-methoxypropoxy)-N'-methylpiperidine-1-carboximidamide;hydroiodide .
user
C20H33IN4O3S
assistant