Using COC(=O)c1ccc(Oc2ccc3c(c2)CCN(C2CCC2)CC3)nc1C(=O)OC to produce O=C([O-])c1ccc(Oc2ccc3c(c2)CCN(C2CCC2)CC3)nc1C(=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.