Using CN(C)C=CC(=O)c1ccccn1, N=C(N)Nc1cccc(-n2ccnc2)c1 to produce c1ccc(-c2ccnc(Nc3cccc(-n4ccnc4)c3)n2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.