Using CCCCCCCCN1CC(C(=O)OC)N(S(=O)(=O)c2ccc(-n3cccc3)cc2)CC1=O to produce CCCCCCCCN1CC(C(=O)O)N(S(=O)(=O)c2ccc(-n3cccc3)cc2)CC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.