Using CCOC(=O)C(=CNC(C)CO)C(=O)c1cc(F)c(F)c(OC(C)=O)c1F to produce CCOC(=O)c1cn2c3c(c(F)c(F)cc3c1=O)OCC2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.