Using O=C(O)CC(=O)O, CCc1cc(C=O)ccc1OCCCNc1cnn(CC)c(=O)c1Cl to produce CCc1cc(C=CC(=O)O)ccc1OCCCNc1cnn(CC)c(=O)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.