Using CCOC(=O)c1c(C)nc2c(O)cc(F)cn12, Fc1cccc(F)c1CBr to produce CCOC(=O)c1c(C)nc2c(OCc3c(F)cccc3F)cc(F)cn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.