Using CCCCBr, Cc1ccc(C2(O)CCNCC2)cc1C(F)(F)F to produce CCCCN1CCC(O)(c2ccc(C)c(C(F)(F)F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.