Showing structure for C[Si](C)(C)O[C@H](COP(=O)(O)OP(=O)(O)OP(=O)(O)O[Si](C)(C)C)[C@@H](O)C1=NC2=C(NC1)N([Si](C)(C)C)C(N([Si](C)(C)C)[Si](C)(C)C)=NC2=O