Using COC1=C(C)C(N)(C(=O)O)NC=C1, ClC(c1ccccc1)(c1ccccc1)c1ccccc1 to produce COC1=C(C)C(NC(c2ccccc2)(c2ccccc2)c2ccccc2)(C(=O)O)NC=C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.