Using CCC(=O)Oc1c(OC)cc(C)cc1OC, COc1ccc(Cl)c(C)c1C(=O)O to produce CCC(=O)Oc1c(OC)cc(C)c(C(=O)c2c(OC)ccc(Cl)c2C)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.