Using COc1cccc(C(N)C(c2cccnc2)c2cccnc2)n1, O=CCOCC=O to produce COc1cccc(C(C(c2cccnc2)c2cccnc2)N2CCOCC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.