Using [BH3-]C#N, O=C(NCc1cn(-c2ccc(N3CCNCC3=O)cc2)nn1)c1ccc(Cl)s1 to produce CN1CCN(c2ccc(-n3cc(CNC(=O)c4ccc(Cl)s4)nn3)cc2)C(=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.