Using CCOC(=O)c1cc2c(=O)[nH]c(-c3ccc(Cl)cc3Cl)cn2n1 to produce O=C(O)c1cc2c(=O)[nH]c(-c3ccc(Cl)cc3Cl)cn2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.