Using BrCCCCBr, NCCCN1CCN(CCCNc2nc3ccccc3[nH]2)CC1 to produce c1ccc2[nH]c(NCCCN3CCN(CCCN4CCCC4)CC3)nc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.