Showing structure for C[Si](C)(C)NC1=NC2=C(N=CN2[C@@H]2O[C@H](COP(=O)(O)OP(=O)(O)O[C@H]3O[C@H](CO)[C@@H](O[Si](C)(C)C)[C@H](O)[C@@H]3O[Si](C)(C)C)[C@@H](O)[C@H]2O)C(=O)[NH]1