Using CCOC(=O)C1CCc2c(c(=O)c3cccnc3n2-c2cccc(Cl)c2)C1 to produce O=C(O)C1CCc2c(c(=O)c3cccnc3n2-c2cccc(Cl)c2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.