Cc3cn([C@@H]2O[C@H](CO[Si](C)(C)C(C)(C)C)[C@@]1(OS(=O)(=O)CC1[NH3+])[C@H]2O[Si](C)(C)C(C)(C)C)c(=O)[nH]c3=O QO9_556_3QO9 3.092 153.587 38 592.884 11 4 2 8 541.831