Using NCC(O)c1cccc(Cl)c1, COC(=O)Cc1ccc(OCC(C)=O)c(O)c1 to produce COC(=O)Cc1ccc(OCC(C)NCC(O)c2cccc(Cl)c2)c(O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.