Using CN(C)C=O, CCCCCCCCCCC1(CCCCCCCCCC)c2cc(Br)ccc2-c2ccc(Br)cc21 to produce CCCCCCCCCCC1(CCCCCCCCCC)c2cc(Br)ccc2-c2ccc(C=O)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.