Showing structure for C[Si](C)(C)OC1C(OP(=O)([O-])OP(=O)([O-])[O-])C(COP(=O)([O-])OP(=O)([O-])O[Si](C)(C)C)OC1N1C=NC2=C1N=C(N([Si](C)(C)C)[Si](C)(C)C)[NH]C2=O