Using CCOCC, COc1cc2nc(N3CCN(C#N)CC3)nc(N)c2cc1OC to produce COC(=N)N1CCN(c2nc(N)c3cc(OC)c(OC)cc3n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.