Using COc1ccc(Nc2ncnc3[nH]c(-c4ccc(CN5CCOCC5)cc4)cc23)cn1 to produce O=c1ccc(Nc2ncnc3[nH]c(-c4ccc(CN5CCOCC5)cc4)cc23)c[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.