Dihydroxylated 2,4,6-triphenyl pyridines: Synthesis, topoisomerase I and II inhibitory activity, cytotoxicity, and structure–activity relationship study
作者:Radha Karki、Pritam Thapa、Han Young Yoo、Tara Man Kadayat、Pil-Hoon Park、Youngwha Na、Eunyoung Lee、Kyung-Hwa Jeon、Won-Jea Cho、Heesung Choi、Youngjoo Kwon、Eung-Seok Lee
DOI:10.1016/j.ejmech.2012.01.015
日期:2012.3
Twelve dihydroxylated 2,4,6-triphenyl pyridines were designed and synthesized which contain hydroxyl groups at ortho, meta or para position of 2- and 6-phenyl, or 2- and 4-phenyl rings attached to the central pyridine. They were evaluated for topoisomerase I and II inhibitory activity, and cytotoxicity against several human cancer cell lines for the development of novel anticancer agents. Generally, dihydroxylated 2,4,6-triphenyl pyridines exhibited stronger topoisomerase II inhibitory activity, and cytotoxicity compared to those of monohydroxylated 2,4,6-triphenyl pyridines. The concrete structure-activity relationship was observed that dihydroxylated 2,4,6-triphenyl pyridines with hydroxyl group at meta or para position of 2-phenyl ring displayed significant topoisomerase II inhibitory activity as well as cytotoxicity. Positive correlation between topoisomerase II inhibitory activity and cytotoxicity was observed for compounds 10, 12, 13, 17-20 and 22. (C) 2012 Elsevier Masson SAS. All rights reserved.