Using CN(C(=O)OCc1ccccc1)C1CCNCC1, CN(C)c1ccc(Br)cn1 to produce CN(C)c1ccc(N2CCC(N(C)C(=O)OCc3ccccc3)CC2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.