Using COC(C)(C)CCCC(C)CC(O)CC(=O)C1COC(=O)C1 to produce COC(C)(C)CCCC(C)C/C=C/C(=O)C1COC(=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.