Using O=C(Cl)Cc1cccc(Cl)c1, O=C(c1ccc[nH]1)C(Cl)(Cl)Cl to produce O=C(Cc1cccc(Cl)c1)c1c[nH]c(C(=O)C(Cl)(Cl)Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.