Using CCOC(=O)COc1cccc2c1CCCC(O)(COC(=O)N(c1ccccc1)c1ccccc1)C2O to produce O=C([O-])COc1cccc2c1CCCC(O)(COC(=O)N(c1ccccc1)c1ccccc1)C2O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.