Using COC(=O)c1cc2nc(C(F)(F)F)c(CC3CCC(F)(F)CC3)n2cc1OC to produce COc1cn2c(CC3CCC(F)(F)CC3)c(C(F)(F)F)nc2cc1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.