Using N=C(N)Nc1cccc(Cl)c1, CN(C)C=CC(=O)c1ccnc(Cl)c1 to produce Clc1cccc(Nc2nccc(-c3ccnc(Cl)c3)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.