You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-(3,4-dihydro-2H-1,5-benzodioxepin-7-yl)-2-[(6-methoxy-1H-benzimidazol-2-yl)sulfanyl]acetamide using the IUPAC nomenclature.
user
C19H19N3O4S
assistant