Using C=C1CC(NC(=O)OC(C)(C)C)C(C(=O)O)C1, Nc1ccc(Cl)cc1 to produce C=C1CC(NC(=O)OC(C)(C)C)C(C(=O)Nc2ccc(Cl)cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.