Using Nc1cccc(Cl)c1, Clc1ccc2ncc(Cc3ccc4ncccc4c3)n2n1 to produce Clc1cccc(Nc2ccc3ncc(Cc4ccc5ncccc5c4)n3n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.