Using CS(=O)(=O)Nc1ccccc1Nc1nc(Cl)ncc1Cl, Nc1ccc2c(c1)CNC(=O)NC2 to produce CS(=O)(=O)Nc1ccccc1Nc1nc(Nc2ccc3c(c2)CNC(=O)NC3)ncc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.