Using CCOC(=O)C1C(=O)c2cc(Nc3c(F)cc(F)cc3Cl)c(Cl)cc2N(c2cccnc2)C1=O to produce O=C(O)C1C(=O)c2cc(Nc3c(F)cc(F)cc3Cl)c(Cl)cc2N(c2cccnc2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.