p. 967 - 972
(2007/10/03)thiourea
4,6-dichloro-1H-pyrazolo[3,4-d]pyrimidine
pyridine
oxypurinol
6-thioxo-1,5,6,7-tetrahydropyrazolo<3,4-d>pyrimidin-4-one
4,6-Bis-methylsulfanyl-1H-pyrazolo[3,4-d]pyrimidine
4-amino-1,7-dihydro-pyrazolo[3,4-d]pyrimidine-6-thione
4,6-dibenzylthio-1H-pyrazolo[3,4-d]pyrimidine
1-(3-acetoxy-2-benzoyloxy-1-propoxy)methyl-3-bromo-4,6-dibenzylthio-1H-pyrazolo[3,4-d]pyrimidine
1-(4-acetoxybutyl)-3-bromo-4,6-dibenzylthio-1H-pyrazolo[3,4-d]pyrimidine