Using CCCS(=O)(=O)Nc1ccc(Cl)c(C(=O)O)c1Cl, Nc1cnc2[nH]ccc2c1 to produce CCCS(=O)(=O)Nc1ccc(Cl)c(C(=O)Nc2cnc3[nH]ccc3c2)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.