Using CC(=O)OC(C)=O, c1ccc(COCc2cc(Oc3ccc4[nH]ccc4c3)ncn2)cc1 to produce CC(=O)n1ccc2cc(Oc3cc(COCc4ccccc4)ncn3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.