Propoxyphenyl Thioaildenafil

rel-5-[5-[[(3R,5S)-3,5-Dimethyl-1-piperazinyl]sulfonyl]-2-propoxyphenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidine-7-thione; (3R,5S)-rel-1-[[3-(4,7-Dihydro-1-methyl-3-propyl-7-thioxo-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-propoxyphenyl]sulfonyl]-3,5-dimethyl-piperazine; 5-(5-(((3R,5S)-3,5-Dimethylpiperazin-1-yl)sulfonyl)-2-propoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(4H)-thione