Using O=C=Nc1ccc(Cl)c(Cl)c1, NS(=O)(=O)c1cccs1 to produce O=C(Nc1ccc(Cl)c(Cl)c1)NS(=O)(=O)c1cccs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.