Using CCCCCC(O)c1cccc(OCc2cccc(-c3nnn(CC(=O)OCC)n3)c2)c1 to produce CCCCCC(O)c1cccc(OCc2cccc(-c3nn[nH]n3)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.