Using O=C(OCc1ccccc1)[C@H]1CC[C@H](C(=O)OCc2ccccc2)CC1 to produce O=C(O)[C@H]1CC[C@H](C(=O)OCc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.