Using Cc1ccc(NC2CCNCC2)nc1, O=S(=O)(OCCC(O)C1CCCCC1)c1ccc(Br)cc1 to produce Cc1ccc(NC2CCN(CCC(O)C3CCCCC3)CC2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.