Using O=C(NCCO)OCc1ccccc1, COC(=O)C1OC1(c1ccccc1)c1ccccc1 to produce COC(=O)C(O)C(OCCNC(=O)OCc1ccccc1)(c1ccccc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.