You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name N-[(3S,3aS,6aR)-5-(furan-2-carbonyl)-1,1-dioxo-2,3,3a,4,6,6a-hexahydrothieno[2,3-c]pyrrol-3-yl]-2-methoxyacetamide ?
user
C14H18N2O6S
assistant