Showing structure for C[Si](C)(C)NC1=NC2=C(C(=O)N1[Si](C)(C)C)N([Si](C)(C)C)C(=O)N2C1OC(COP(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-])C(O)C1O[Si](C)(C)C