[H]OC(=O)C([H])([H])C([H])([H])[C@](O[H])(C(=O)O[H])[C@]([H])(C(=O)O[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])=C([H])[H]