Using C[C@@H](O)c1nc2cnc3ccsc3c2n1[C@H]1CCNC1, CCCC#N to produce C[C@@H](O)c1nc2cnc3ccsc3c2n1[C@H]1CCN(CCCC#N)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.