Using COCCI, COC(=O)c1cc2cc(O)c(OC)cc2c(-c2ccncc2)c1C(=O)OC to produce COCCOc1cc2cc(C(=O)OC)c(C(=O)OC)c(-c3ccncc3)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.