Using CCOC(=O)c1c(C)nc2c(O)cc(C)cn12, Fc1ccc(F)c(CBr)c1F to produce CCOC(=O)c1c(C)nc2c(OCc3c(F)ccc(F)c3F)cc(C)cn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.