Using Brc1ccncc1, CN(C(=O)OCc1ccccc1)C1CCCNC1 to produce CN(C(=O)OCc1ccccc1)C1CCCN(c2ccncc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.