Using NCCN1CCOCC1, Nc1ncnc2ccc(-c3cccc(C(=O)O)c3)nc12 to produce Nc1ncnc2ccc(-c3cccc(C(=O)NCCN4CCOCC4)c3)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.