Using CCOC(OCC)OCC, C[C@H](NC(C#N)C1(C=O)CC1)c1ccccc1 to produce CCOC(OCC)C1([C@@H](C#N)N[C@@H](C)c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.