Using Nc1ccc(OCCO)c(N)c1, CCN(c1ccc(N)cc1)C(C)C to produce CCN(c1ccc(N=C2C=C(OCCO)C(=N)C=C2N)cc1)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.