Using CC(C)C[C@H](OC(c1ccccc1)c1ccc(C(=O)O)cc1)C(=O)NCC#N, CNC to produce CC(C)C[C@H](OC(c1ccccc1)c1ccc(C(=O)N(C)C)cc1)C(=O)NCC#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.