Atomic structure
There is only one chemically distinct structure:
Cc1cn([C@@H]2O[C@H](CO[C@@H]3[C@@H](CO[C@@H]4[C@@H](CO[C@@H]5[C@@H](CO[C@@H]6[C@@H](CO)O[C@@H](n7cc(C)c(=O)[nH]c7=O)[C@@H]6O)O[C@@H](n6cc(C)c(=O)[nH]c6=O)[C@@H]5O)O[C@@H](n5cc(C)c(=O)[nH]c5=O)[C@@H]4O)O[C@@H](n4cc(C)c(=O)[nH]c4=O)[C@@H]3O)[C@@H](O)[C@H]2O)c(=O)[nH]c1=O