Using CCCCNC(=O)CCN(CCC(=O)NCCCC)S(=O)(=O)c1ccc(C)cc1 to produce CCCCNCCCN(CCCNCCCC)S(=O)(=O)c1ccc(C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.