Using CCCCCCCCCCCCCCCCCCO, Cc1cc(C(C)(C)C)c(O)c(C)c1CC(=O)O to produce CCCCCCCCCCCCCCCCCCOC(=O)Cc1c(C)cc(C(C)(C)C)c(O)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.