[H]C1=C(OC(=O)C([H])([H])[H])C2=C(C([H])=C1OC(=O)C([H])([H])[H])C([H])([H])[C@]([H])(OC(=O)C([H])([H])[C@]([H])(OC(=O)C1=C(OC(=O)C([H])([H])[H])C([H])=C(OC(=O)C([H])([H])[H])C([H])=C1C([H])([H])[C@]([H])(OC(=O)C([H])([H])[C@]([H])(OC(=O)C([H])([H])[H])C([H])([H])OC(=O)C([H])([H])[C@]([H])(OC2=O)C([H])([H])[H])C([H])([H])[H])C([H])([H])[H])C([H])([H])[H]