Using C/C(=N\OCCN1C(=O)c2ccccc2C1=O)c1cnc2nnn(Cc3ccc4ncccc4c3)c2n1 to produce C/C(=N\OCCN)c1cnc2nnn(Cc3ccc4ncccc4c3)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.