6-Amino-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,7-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one 50mg

6-Amino-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,7-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one 50mg