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