Using CC(=O)CCC(C)=O, COC(=O)c1c(F)c(F)c(N)c(F)c1F to produce COC(=O)c1c(F)c(F)c(-n2c(C)ccc2C)c(F)c1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.