1361569-10-9

6-Amino-2-[1-[(2-fluorophenyl)methyl]-1H-pyrazolo[3,4-b]pyridin-3-yl]-7,9-dihydro-8H-purin-8-one is derived from 2-[1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimidine-4,5-6-triamine (F595655), which is a metabolite of stimulators of soluble guanylate cyclase for the treatment of pulmonary hypertension;Also, it is an impurity of Riociguat (R520000), which is used in the treatment for pulmonary hypertension.