Sulfamic acid promoted one-pot synthesis of phenanthrene fused-dihydrodibenzo-quinolinones: Anticancer activity,tubulin polymerization inhibition and apoptosis inducing studies |
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Authors: | Niggula Praveen Kumar Sowjanya Thatikonda Ramya Tokala S. Sujana Kumari Uppu Jaya Lakshmi Chandraiah Godugu Nagula Shankaraiah Ahmed Kamal |
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Affiliation: | 1. Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India;2. Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India;3. Department of Regulatory Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India |
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Abstract: | A facile one-pot method for the synthesis of new phenanthrene fused-dihydrodibenzo-quinolinone derivatives has been successfully accomplished by employing sulfamic acid as catalyst. These new compounds were evaluated for their in vitro cytotoxic potential against human lung (A549), prostate (PC-3 and DU145), breast (MCF-7) and colon (HT-29 and HCT-116) cancer cell lines. Among all the tested compounds, one of the derivatives 8p showed good anti-proliferative activity against A549 lung cancer cell line with an IC50 of 3.17?±?0.52?µM. Flow cytometric analyses revealed that compound 8p arrested both Sub G1 and G2/M phases of cell cycle in a dose dependent manner. The compound 8p also displayed significant inhibition of tubulin polymerization and disruption of microtubule network (IC50 of 5.15?±?0.15?µM). Molecular docking studies revealed that compound 8p efficiently interacted with critical amino acid Cys241 of the α/β-tubulin by a hydrogen bond (S | |
Keywords: | Phenanthrene fused-dihydrodibenzo-quinolinones Perkin condensation Tubulin polymerization One-pot reaction Apoptosis |
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