1,6-Dihydro-1-methyl-5-[5-[(4-methyl-1-piperazinyl)sulfonyl]-2-propoxyphenyl]-3-propyl-7H-pyrazolo[4,3-d]pyrimidine-7-thione

1,6-Dihydro-1-methyl-5-[5-[(4-methyl-1-piperazinyl)sulfonyl]-2-propoxyphenyl]-3-propyl-7H-pyrazolo[4,3-d]pyrimidine-7-thione