Showing structure for C[Si](C)(C)NC(=O)C1=C(/N=C/N(C=C(O[Si](C)(C)C)[C@H](O)[C@H](O)COP(=O)(O)O)[Si](C)(C)C)N([C@@H]2O[C@H](COP(=O)(O)O)[C@@H](O)[C@H]2O)C=N1