label: 1-(4-ethoxy-3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)phenylsulfonyl)piperazine
label_lc: 1-(4-ethoxy-3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1h-pyrazolo(4,3-d)pyrimidin-5-yl)phenylsulfonyl)piperazine