Showing structure for CNC1C(OC2C(OC3C(O)C(O[Si](C)(C)C)C(NC(=N)N)C(O[Si](C)(C)C)C3NC(=N[Si](C)(C)C)N[Si](C)(C)C)OC(C)C2(O)CO)OC(CO)C(O)C1O