Using OB(O)c1ccc(F)cc1, COC(=O)c1cccc2[nH]nc(C=O)c12 to produce COC(=O)c1cccc2c1c(C=O)nn2-c1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.