Atomic structure
There is only one chemically distinct structure:
*O[C@@H]1[C@@H](NC(C)=O)[C@@H](O[C@H]2[C@@H](C(=O)O)O[C@H](O[C@H]3[C@@H](C(=O)O)O[C@H](O[C@@H]4[C@@H](NC(C)=O)[C@H](*)O[C@H](C)[C@H]4NC(C)=O)[C@H](NC(C)=O)[C@H]3OC(C)=O)[C@H](NC(C)=O)[C@H]2OC(C)=O)O[C@H](C(=O)O)[C@@H]1OC(C)=O