Using CCOC(=O)c1ccc(CBr)c(C(F)(F)F)c1, CN1CCNCC1 to produce CCOC(=O)c1ccc(CN2CCN(C)CC2)c(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.