Using COCCOCCO, O=C1c2ccc3cccnc3c2N=CC1C(=O)n1ccnc1 to produce COCCOCCOC(=O)C1C=Nc2c(ccc3cccnc23)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.