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