Using CC(=O)c1ccncc1, Nc1ccc(C2=NNC(=O)CC2)cc1 to produce CC(=Nc1ccc(C2=NNC(=O)CC2)cc1)c1ccncc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.