11.8
[1]. Robak T, Robak P. Purine nucleoside analogs in the treatment of rarer chronic lymphoid leukemias. Curr Pharm Des. 2012;18(2):-88.
[2]. Qingchun Zhang, et al. Differentiation of 2 -O- and -O-methylated ribonucleosides by tandem mass spectrometry. J Am Soc Mass Spectrom. 2006 Aug;1(8):1096-1099.
H02-H15-H19
P264-P20-P280-P02+P52-P0-P62+P64-P501
GHS0