Synthesis and antiamoebic activity of 3, 7-dimethyl-pyrazolo [3, 4-e][1, 2, 4] triazin-4-yl thiosemicarbazide derivatives

S Singh, K Husain, F Athar, A Azam

Index: Singh, Shailendra; Husain, Kakul; Athar, Fareeda; Azam, Amir European Journal of Pharmaceutical Sciences, 2005 , vol. 25, # 2-3 p. 255 - 262

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Citation Number: 23

Abstract

A series of 3, 7-dimethyl-pyrazolo [3, 4-e][1, 2, 4] triazin-4-yl thiosemicarbazide derivatives 3– 22 were prepared and evaluated in vitro against HM1: 1MSS strain of Entamoeba histolytica, to identify the compounds for antiamoebic activity. They exhibited antiamoebic activity in the range (IC50= 0.81–7.31 μM). The results were compared to the activity of known drug metronidazole. It is inferred from the in vitro studies that the compounds 10, 11, 17 and 18 ...