Using c1ccc2c3c([nH]c2c1)CNCC3, O=C1Nc2ccc(Br)c3c2C1(CCCCBr)CCC3 to produce O=C1Nc2ccc(Br)c3c2C1(CCCCN1CCc2c([nH]c4ccccc24)C1)CCC3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.