Using CC[O-], Clc1nc(N2CCNCC2)c2[nH]c3cc(Br)ccc3c2n1 to produce CCOc1nc(N2CCNCC2)c2[nH]c3cc(Br)ccc3c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.