Using COCC1OCC(C)(C)[NH+]1C, O=Nc1c(O)ccc2ncccc12 to produce COC1=Nc2c(ccc3ncccc23)OC12OCC(C)(C)N2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.