Using COc1ccc(-c2cnc(Nc3ccc(OCCN4CCCC4)cc3)s2)cc1 to produce Oc1ccc(-c2cnc(Nc3ccc(OCCN4CCCC4)cc3)s2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.