Showing structure for C[Si](C)(C)OP(=O)(O)OP(=O)(O[Si](C)(C)C)OP(=O)(OC[C@H]1O[C@@H](NC2=C(N)C(=O)N([Si](C)(C)C)C(N)=N2)[C@H](O)[C@@H]1O)O[Si](C)(C)C