Using [BH3-]C#N, C=CCC(C=O)(c1ccc(Cl)c(Cl)c1)N(C)C(=O)OC(C)(C)C to produce C=CCC(CNC)(c1ccc(Cl)c(Cl)c1)N(C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.