Using O=C1CC(CN2CCCCC2)C1, Brc1ccc(CN2CCCC2)cc1 to produce OC1(c2ccc(CN3CCCC3)cc2)CC(CN2CCCC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.