ChemInform Abstract: Cyanoacetylation of 5‐Aminopyrazole: Synthesis of 2‐(1‐Aryl‐4‐substituted pyrazolo[3,4‐d]pyrimidin‐6‐yl)acetonitrile Derivatives.

Abstract

Fused pyrimidine derivatives R 0515 Cyanoacetylation of 5-Aminopyrazole: Synthesis of 2-(1-Aryl-4-substituted pyrazolo[3,4-d]pyrimidin-6-yl)acetonitrile Derivatives. -N-Aryl-5-amino-4-cyanopyrazoles (I) are used as precursors in the synthesis of a series of pyrazolo[3,4-d]pyrimidines (VII) as potential antioxidants. -(SALAHELDIN, A. M.; Z. Naturforsch., B: