Using [BH3-]C#N, O=C(NCC(O)CN1CCc2ccccc2C1)c1cccc(C2CCNC2)c1 to produce CN1CCC(c2cccc(C(=O)NCC(O)CN3CCc4ccccc4C3)c2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.