Using CCOC(=O)c1cn(Cc2ccc(OC)cc2)nc1C(F)(F)F to produce COc1ccc(Cn2cc(C(=O)O)c(C(F)(F)F)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.