School Of Basic And Applied Sciences

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Author: search.filters.author.Alex, Jimi MarinSubject: search.filters.subject.Anticancer activity

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    Imine/amide-imidazole conjugates derived from 5-amino-4-cyano-N1-substituted benzyl imidazole: Microwave-assisted synthesis and anticancer activity via selective topoisomerase-II-? inhibition
    (Elsevier Ltd, 2015) Negi, Arvind; Alex, Jimi Marin; Amrutkar, Suyog M.; Baviskar, Ashish T.; Joshi, Gaurav; Singh, Sandeep; Banerjee, Uttam Chand; Kumar, Raj
    Microwave-accelerated synthesis and anticancer activity of novel imine/amide-imidazole conjugates derived from 5-amino-4-cyano-N1-substituted benzyl imidazole against a panel of seven cancer cell lines are reported for the first time. Compounds ARK-4, 10 and 12 in the series show promising in vitro anti proliferative activity with low micromolar IC 50 values against A-459 (lung), Hep-G2 (liver) and H-460 (liver) cancer cell lines. Compounds caused the increase in ROS levels as well as mitochondrial membrane depolarization, which might induce apoptosis. Further, mechanistic interventions on biological and molecular modeling data supported that compounds inhibited topoisomerase-II selectively.- 2015 Elsevier Ltd. All rights reserved.
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    Design, microwave-mediated synthesis and biological evaluation of novel 4 aryl(alkyl)amino-3-nitroquinoline and 2,4-diaryl(dialkyl) amino-3-nitroquinolines as anticancer agents
    (Elsevier, 2015) Chauhan, Monika; Rana, Anil; Alex, Jimi Marin; Negi, Arvind; Singh, Sandeep; Kumar, Raj
    Design, microwave-assisted synthesis of novel 4-aryl (alkyl)amino-3-nitroquinoline (1a–1l) and 2,4-diaryl (dialkyl)amino-3-nitroquinolines (2a–2k and 3a) via regioselective and complete nucleophilic substitution of 2,4-dichloro-3-nitroquinoline, respectively in water are presented. The newly synthesized compounds were evaluated for the first time for antiproliferative activity against EGFR overexpressing human lung (A-549 and H-460) and colon (HCT-116-wild type and HCT-116-p53 null) cancer cell lines. Some notions about structure–activity relationships (SAR) are presented. Compounds 2e, 2f, 2j and 3a overall exhibited excellent anticancer activity comparable to erlotinib which was used as a positive control. Molecular modeling studies disclosed the recognition pattern of the compounds and also supported the observed SAR.