Using O=C(O)c1cc2c3ccccc3[nH]c(=O)n2n1, O=C(Cl)C(=O)Cl to produce O=C(Cl)c1cc2c3ccccc3[nH]c(=O)n2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.