You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
The IUPAC name of a certain molecule is ethyl (8S,11aR)-6,6-dioxo-8-phenyl-11,11a-dihydro-8H-pyrido[1,2-c][1,2,3]benzoxathiazine-9-carboxylate . Can you provide its SMILES representation?
user
CCOC(=O)C1=CCC2C3=CC=CC=C3OS(=O)(=O)N2C1C1=CC=CC=C1
assistant