Using COCC(C(=O)O)N(CCN(Cc1ccccc1O)C(COC)C(=O)O)Cc1ccccc1O to produce O=C(O)C(CO)N(CCN(Cc1ccccc1O)C(CO)C(=O)O)Cc1ccccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.