Using c1ccc(N2CCNCC2)nc1, O=C1Nc2cccc3c2C1(CCCCBr)CCC3 to produce O=C1Nc2cccc3c2C1(CCCCN1CCN(c2ccccn2)CC1)CCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.