A new series of 2-phenol-4-aryl-6-chlorophenyl pyridine derivatives as dual topoisomerase I/II inhibitors: Synthesis, biological evaluation and 3D-QSAR study

Radha Karki, Kyu Yeon Jun, Tara Man Kadayat, Somin Shin, Til Bahadur Thapa Magar, Ganesh Bist, Aarajana Shrestha, Younghwa Na, Youngjoo Kwon, Eung Seok Lee

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

As a continuous effort to develop novel antitumor agents, a new series of forty-five 2-phenol-4-aryl-6-chlorophenyl pyridine compounds were synthesized and evaluated for cytotoxicity against four different human cancer cell lines (DU145, HCT15, T47D, and HeLa), and topoisomerase I and II inhibitory activity. Several compounds (10-15, 20, 22, 24, 28, 42, and 49) displayed strong to moderate dual topoisomerase I and II inhibitory activity at 100 μM. It was observed that hydroxyl and chlorine moiety at meta or para position of phenyl ring is favorable for dual topoisomerase inhibitory activity and cytotoxicity. Most of the compounds displayed stronger cytotoxicities than those of all positive controls against the HCT15 and T47D cell lines. For investigation of the structure-activity relationships, a 3D-QSAR analysis using the method of comparative molecular field analysis (CoMFA) was performed. The generated 3D contour maps can be used for further rational design of novel terpyridine derivatives as highly selective and potent cytotoxic agents.

Original languageEnglish
Pages (from-to)228-245
Number of pages18
JournalEuropean Journal of Medicinal Chemistry
Volume113
DOIs
StatePublished - 4 May 2016

Keywords

  • 2-phenol-4-aryl-6-chlorophenyl pyridine
  • 3D-QSAR
  • Antitumor agents
  • CoMFA
  • Cytotoxicity
  • Dual topoisomerase I and II inhibition

Fingerprint

Dive into the research topics of 'A new series of 2-phenol-4-aryl-6-chlorophenyl pyridine derivatives as dual topoisomerase I/II inhibitors: Synthesis, biological evaluation and 3D-QSAR study'. Together they form a unique fingerprint.

Cite this