Using BrCCCCCCCN1CCCCC1, O=C1c2ccccc2Nc2ncccc2N1Cc1ccccc1 to produce O=C1Nc2cccnc2N(CCCCCCCN2CCCCC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.