Using O=C1NC(c2ccccc2)=C2C(=O)OC(c3ccc(Br)cc3)=C12, COS(=O)(=O)c1ccc(C)cc1 to produce CN1C(=O)C2=C(c3ccc(Br)cc3)OC(=O)C2=C1c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.