Using COC(=O)Cc1coc2cc(O)ccc12, CCOc1ccc(CCl)cc1 to produce CCOc1ccc(COc2ccc3c(CC(=O)OC)coc3c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.