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