[H]OC(=O)C([H])(N([H])C(=O)C1([H])C([H])([H])C([H])([H])C([H])(C([H])([H])C1([H])[H])C([H])(C([H])([H])[H])C([H])([H])O)C([H])([H])C1=C([H])C([H])=C([H])C([H])=C1[H]