You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(3-amino-2-methylphenyl)-3-(6,7-dihydro-4H-thieno[3,2-c]pyridin-5-yl)propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H21N3OS
assistant