[H]OC1=C(OC2=C([H])C(=C([H])C(O[H])=C2C(=O)O[C@]([H])(C2=C(C(OC([H])([H])[H])=C([H])C(=O)O2)C([H])([H])O[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])C([H])([H])[H])C(=C([H])C(OC([H])([H])[H])=C1[H])C(=O)OC([H])([H])[H]