Using C1COCCN1, CCOC(=O)c1sc(-c2ccc(C(F)(F)F)cc2)nc1CBr to produce CCOC(=O)c1sc(-c2ccc(C(F)(F)F)cc2)nc1CN1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.