Using O=C(Cl)c1ccc2ccccc2c1, Cc1cc(Cl)cc(Cl)c1 to produce Cc1cc(Cl)c(C(=O)c2ccc3ccccc3c2)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.