Atomic structure
There is only one chemically distinct structure:
Nc1nc2c(ncn2[C@@H]2O[C@H](COP(=O)(O)O[C@H]3[C@@H](O)[C@H](n4cnc5c(=O)[nH]c(N)nc54)O[C@@H]3COP(=O)(O)O[C@H]3[C@@H](O)[C@H](n4cnc5c(=O)[nH]c(N)nc54)O[C@@H]3COP(=O)(O)O[C@H]3[C@@H](O)[C@H](n4cnc5c(=O)[nH]c(N)nc54)O[C@@H]3COP(=O)(O)O[C@H]3[C@@H](O)[C@H](n4cnc5c(=O)[nH]c(N)nc54)O[C@@H]3COP(=O)(O)O[C@H]3[C@@H](O)[C@H](n4cnc5c(=O)[nH]c(N)nc54)O[C@@H]3CO)[C@@H](O)[C@H]2O)c(=O)[nH]1Warning = sub-repeat ending at xXP?: large unit count (11) was reduced to 5