Using CCOC(=O)c1cc(-c2cc(OC)ccn2)n(-c2ccc(OC)nc2)n1 to produce COc1ccnc(-c2cc(C(=O)O)nn2-c2ccc(OC)nc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.