Atomic structure
There is only one chemically distinct structure:
Cc1cn([C@H]2C[C@H](O)[C@@H](COP(=O)(O)O[C@H]3C[C@H](n4cc(C)c(=O)[nH]c4=O)O[C@@H]3COP(=O)(O)O[C@H]3C[C@H](n4cc(C)c(=O)[nH]c4=O)O[C@@H]3COP(=O)(O)O[C@H]3C[C@H](n4cc(C)c(=O)[nH]c4=O)O[C@@H]3COP(=O)(O)O[C@H]3C[C@H](n4cc(C)c(=O)[nH]c4=O)O[C@@H]3CO)O2)c(=O)[nH]c1=O