You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-(3,4-dihydro-1H-isoquinolin-2-yl)-2-[[5-(2,5-dimethylfuran-3-yl)-1,3,4-oxadiazol-2-yl]sulfanyl]ethanone into molecular formula.
user
C19H19N3O3S
assistant