Using Cn1cc(-c2cc3c(-c4cnn(C)c4)nn(C4CCCCO4)c3cn2)cn1 to produce Cn1cc(-c2cc3c(-c4cnn(C)c4)n[nH]c3cn2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.