Using CN(Cc1ccccc1)C1CCC(=O)CC1, CN(C)c1cc(Br)ccn1 to produce CN(C)c1cc(C2(O)CCC(N(C)Cc3ccccc3)CC2)ccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.