label: (R)-1-cyclopentyl-6-(1-((2-hydroxy-4-methoxybenzyl)amino)ethyl)-1H-pyrazolo(3,4-d)pyrimidin-4(5H)-one
label_lc: (r)-1-cyclopentyl-6-(1-((2-hydroxy-4-methoxybenzyl)amino)ethyl)-1h-pyrazolo(3,4-d)pyrimidin-4(5h)-one