3-Imino-N,1-dimethyl-6-(methylthio)-2,3-dihydro-1H-pyrazolo[3,4-d]pyrimidin-4-amine AIDS-152796 AIDS152796 N-(3-Imino-1-methyl-6-(methylthio)-2,3-dihydro-1H-pyrazolo[3,4-d]pyrimidin-4-yl)-N-methylamine NSC697788