Showing structure for C[Si](C)(C)O[C@H]1C(N2C=NC3=C(N([Si](C)(C)C)[Si](C)(C)C)N=CN=C32)OC(COP(=O)(OC(=O)CCC[C@H](N)C(=O)O)O[Si](C)(C)C)[C@H]1O