Using CCOC(=O)C(C)(C)CCCCC(O)CCCCC(C)(C)C(=O)OCC to produce CC(C)(CCCCC(O)CCCCC(C)(C)C(=O)O)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.