最佳答案
回答者：网友
O1C([H])([H])[C@@]23[C@@]4([H])C([H])([H])[C@]5([H])C(C([H])([H])[H])=C(C(C([H])([H])[C@]5(C([H])([H])[H])[C@]2([H])[C@]([H])([C@@]([H])([C@]1(C(=O)OC([H])([H])[H])[C@@]3([H])[C@]([H])(C(=O)O4)OC(/C(/[H])=C(\C([H])([H])[H])/C([H])([H])[H])=O)O[H])O[H])=O)O[H]
