Using COC(OC)c1ccc2c(n1)N(C(=O)Nc1cc(C3=CCOCC3)c(C#N)cn1)CCC2 to produce COC(OC)c1ccc2c(n1)N(C(=O)Nc1cc(C3CCOCC3)c(C#N)cn1)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.