[H]OC([H])([H])C1=NC(\C([H])=C(/C([H])([H])[H])[C@@]2([H])OC(=O)C([H])([H])[C@]([H])(O[H])C(C(=O)[C@]([H])(C([H])([H])[H])[C@@]([H])(O[H])[C@@]([H])(C([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])[C@]3(O[C@@]3([H])C2([H])[H])C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H])=C([H])S1