Showing structure for COC(=O)C(CCCCN([Si](C)(C)C)P(=O)([O-])OCC1OC(N2C=NC3=C2N=C(N)N([Si](C)(C)C)C3=O)C(O[Si](C)(C)C)C1O[Si](C)(C)C)NC(C)=O