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