Using CN(Cc1cccc(-c2ccc(C=C3SC(=O)NC3=O)cc2)c1)C(=O)OC(C)(C)C to produce CN(Cc1cccc(-c2ccc(CC3SC(=O)NC3=O)cc2)c1)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.