Using O=C1NC(=O)C(=Cc2ccc(O)c3c2CCC(=O)N3Cc2ccccc2)S1 to produce O=C1NC(=O)C(Cc2ccc(O)c3c2CCC(=O)N3Cc2ccccc2)S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.