Lodenafilcarbonate;4-[[3-(4,7-Dihydro-1-Methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyriMidin-5-yl)-4-ethoxyphenyl]sulfonyl]-1-piperazineethanolCarbonateEster;5,5'-[Carbonylbis[oxy-2,1-ethanediyl-4,1-piperazinediylsulfonyl(6-ethoxy-3,1-phenylene)]]bis[1,6-dihydro-1-Methyl-3-propyl-7H-pyrazolo[4,3-d]pyriMidin-7-one;7H-Pyrazolo[4,3-d]pyriMidin-7-one,5,5'-[carbonylbis[oxy-2,1-ethanediyl-4,1-piperazinediylsulfonyl(6-ethoxy-3,1-phenylene)]]bis[1,6-dihydro-1-Methyl-3-propyl-;bis[2-[4-[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl]sulfonylpiperazin-1-yl]ethyl]carbonate