M. Younes, H. H. Abbas, S. Metwally
1991
Citations
0
Influential Citations
6
Citations
Journal
Pharmazie
Abstract
Ethoxymethylene cyanoacetate reacts with 5-ethyl-3-hydrazino-5H-1,2,4-triazino [5,6-b] indole (1) to give ethyl-5-amino-1-(5-ethyl-5H-1,2,4-triazino [5,6-b] indol-3-yl)-1H-pyrazole-4-carboxylate (4). 4 reacts with urea, thiourea and benzylnitrile to give pyrazolo [3,4-d [pyrimidine derivatives (5, 6). The reaction of 4 with other reagents such as acid chlorides, acid anhydrides, hydrazines and ammonium thiocyanate was also studied