Using CCCCCCCCN1CC(CCC(=O)OC)c2c(C)cc(C)c(NC(=O)C(C)(C)C)c21 to produce CCCCCCCCN1CC(CCC(=O)O)c2c(C)cc(C)c(NC(=O)C(C)(C)C)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.