Using CCOC(=O)c1nccc(CC)c1NC(=O)Cc1c(F)cc(F)cc1F to produce O=C1Nc2cccnc2C(=O)C1c1c(F)cc(F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.