Using CCCCCCCCCCCCOc1ccc(CC(=O)OCC(=O)OCC)cc1 to produce CCCCCCCCCCCCOc1ccc(C2=C(O)COC2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.