Title:Synthesis, Antiproliferative Evaluation, and Molecular Docking of Thieno[3,2-e]indazole Derivatives
Volume: 21
Issue: 16
Author(s): Rafat M. Mohareb*, Ibram Refat Mikhail, Marwa Soliman Gamaan and Ensaf S. Alwan
Affiliation:
- Department of Chemistry, Faculty of Science, Cairo University, Giza, A.R. Egypt
Keywords:
Cyclohexan-1, 3-dione, cytotoxicity, multi-component reactions, thieno-[3, 2-e]indazole, morphology, molecular docking.
Abstract:
Background: Although indazole derivatives are rare and may not be available easily in
nature, there are many reports demonstrating their pharmaceutical and other applications.
Objective: This study aimed to synthesize new indazole derivatives and evaluate their antiproliferative
activity to produce new anti-cancer agents.
Methods: Compounds 3a-c were synthesized through the reaction. The 2-aryllidenecyclohexane-1,3-
dione derivatives 3a-c were obtained through the reaction of cyclohexane-1,3-dione with aromatic
aldehydes used for the synthesis of thieno-[3,2-e]indazole derivatives. These derivatives were characterized
by extensive analytical and spectral studies and were further used as starting materials for
some heterocyclic transformations to produce biologically active compounds. The antiproliferative
activities of the newly synthesized compounds were evaluated against the six cancer cell lines, A549,
HT-29, MKN-45, U87MG, SMMC-7721, and H460. Most of the tested compounds exhibited high
cytotoxicity except a few compounds.
Results: In this study, new compounds were synthesized, characterized, and evaluated toward the
selected six cancer cell lines. All tested compounds displayed potent c-Met enzymatic activity with
IC50 values ranging from 0.25 to 10.30 nM and potent prostate PC-3 cell line inhibition with IC50
values ranging from 0.17 to 9.31 μM.
Conclusion: The results obtained in this work demonstrated that the variations in substituents within
the aryl moiety, together with the attached heterocyclic ring, have a notable influence on the antiproliferative
activity. The results obtained in this work encourage further work in the future.