[H]C1(O)CC[C@@]2(C)C([H])(CC[C@]3(C)C2([H])C(=O)CC2([H])C4([H])C[C@](C)(CC[C@]4(COC4([H])OC([H])(C(O)=O)C([H])(O)C([H])(O)C4([H])O)CC[C@@]32C)C(O)=O)C1(C)C