Using CCCCCCCCCCCCCCC(C)c1cc(C(C)(C)C)ccc1O, O=CC(=O)O to produce CCCCCCCCCCCCCCC(C)c1cc(C(C)(C)C)cc2c1OC(=O)C2O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.