You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by [(3aS,8bS)-7-(furan-2-yl)-4,4-dioxo-1,3,3a,8b-tetrahydro-[1]benzothiolo[2,3-c]pyrrol-2-yl]-(furan-2-yl)methanone ?
user
C19H15NO5S
assistant