Antiplasmodial and antitumor activity of dihydroartemisinin analogs derived via the aza-Michael addition reaction
摘要:
A series of dihydroartemisinin derivatives were synthesized via an aza-Michael addition reaction to a dihydroartemisinin-based acrylate and were evaluated for antiplasmodial and antitumor activity. The target compounds showed excellent antiplasmodial activity, with dihydroartemisinin derivatives 5, 7, 9 and 13 exhibiting IC50 values of <= 10 nM against both D10 and Dd2 strains of Plasmodium falciparum. Derivative 4d was the most active against the HeLa cancer cell line, with an IC50 of 0.37 mu M and the highest tumor specificity. (C) 2011 Elsevier Ltd. All rights reserved.