Using CN(C)C=CC=[N+](C)C, N=C(N)c1cccc(-c2cnn(-c3cccnc3)c2)n1 to produce c1cnc(-c2cccc(-c3cnn(-c4cccnc4)c3)n2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.