PYRAZOLO[5,4-<i>h</i>]QUINAZOLINES

Abstract

The reaction of 1-phenyl- and 4-chloro-5-formyl-3-methyl-1-(2-pyridyl)-6,7-dihydroindazoles with carbamidinopyrrolidine, 4-carbamidinomorpholine, creatine, 2-carbamidinopyrazine, and 2-carbamidino-5-trifluoromethylpyridine gives the corresponding 3,8-substituted 1-methyl-4,5-dihydropyrazolo-[5,4 h]quinazolines and with 2-aminobenzimidazole gives 3-phenyl- and 3-(2-pyridyl)-1-methyl-4,5-dihydrobenzo[b]indazolo[4,5-e]imidazolo[1,2-a]pyrimidines.

Authors: I. A. Strakova, A. Ya. Strakov, and M. V. Petrova.

English Translation in Chemistry of Heterocyclic Compounds, 2000, 36 (7), pp 847-850

http://link.springer.com/article/10.1007/BF02256921