[H]OC([H])([H])[C@@]1([H])O[C@@]([H])(O\C([H])=C(/C([H])([H])[H])[C@]2([H])C(=O)C([H])([H])[C@]([H])(C([H])([H])[H])C([H])([H])C2([H])[H])[C@]([H])(O[H])[C@@]([H])(O[H])[C@]1([H])O[H]