Using CCCCC(O)CCCC, CC(=O)N1CCCC(=O)c2ccc(Cl)cc2CCC1=O to produce CCCCC(CCCC)OC(=O)CCc1cc(Cl)ccc1C(=O)CCCNC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.