Scheme 1. The synthetic route to 6-mercaptopyrazolo[3,4-d]pyrimidines derivatives 4 and 5

From

Synthesis and Chemical Reactivity of some new Fluorine Substituted Pyrazolopyrimidine Derivatives and Their Effect on Cellobiase Activity Produced by Fungi

Reda Abdul-Rahman, Dina Abed Bakhotmah, Montaha Fakhorji

World Journal of Organic Chemistry. 2017, 5(1), 1-5 doi:10.12691/wjoc-5-1-1