Showing structure for C[Si](C)(C)NC1=NC(=O)N([C@@H]2O[C@H](COP(=O)(OC[C@H](O)[C@H](O)[C@@H]3O[C@](O[Si](C)(C)C)(C(=O)O)C[C@H](O)C3NC(=O)CO)O[Si](C)(C)C)[C@@H](O)[C@H]2O)C=C1