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■ Synthesis, Reactivity and ¹³C-NMR of 1H-Pyrazolo[3,4-c]pyridine Derivatives

Jean-Claude Milhavet, Alain Gueiffier,* Lysiane Bernal, and Jean-Claude Teulade

*Laboratoire de Chimie Thérapeutique, Faculté de Pharmacie, U.F.R. des Sciences Pharmaceutiques "Philippe Maupas", Université de Tours, 31Avenue Monge, 37200 Tours, France

Abstract

The synthesis of various 1H-pyrazolo[3,4-c]pyridines was reported. 3-Cyano derivatives were obtained from the corresponding nitro compounds by Sandmeyer Reaction using Na₃[Cu(CN)₄] at pH 1. The ¹³C-NMR data of this serie were also described.