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Novel quinolines carrying pyridine, thienopyridine, isoquinoline, thiazolidine, thiazole and thiophene moieties as potential anticancer agents Cover

Novel quinolines carrying pyridine, thienopyridine, isoquinoline, thiazolidine, thiazole and thiophene moieties as potential anticancer agents

Open Access
|May 2016

Abstract

As a part of ongoing studies in developing new anticancer agents, novel 1,2-dihydropyridine 4, thienopyridine 5, isoquinolines 6–20, acrylamide 21, thiazolidine 22, thiazoles 23–29 and thiophenes 33–35 bearing a biologically active quinoline nucleus were synthesized. The structure of newly synthesized compounds was confirmed on the basis of elemental analyses and spectral data. All the newly synthesized compounds were evaluated for their cytotoxic activity against the breast cancer cell line MCF7. 2,3-Dihydrothiazole-5-carboxamides 27, 25, 4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (34), 1,2-dihydroisoquinoline-7-carbonitrile (7), 5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxamide (35), 1,2-dihydroisoquinoline-7-carbonitrile (6), 2-cyano-3-(dimethylamino)-N-(quinolin-3-yl)acrylamide (21), 1,2-dihydroisoquinoline-7-carbonitriles (11) and (8) exhibited higher activity (IC50 values of 27–45 μmol L–1) compared to doxorubicin (IC50 47.9 μmol L–1). LQ quinolin-3-yl)-1,2-dihydroisoquinoline-7-carbonitrile (12), 2-thioxo-2,3-dihydrothiazole-5-carboxamide (28) and quinolin-3-yl)-1,2-dihydroisoquinoline-7-carbonitrile (15) show activity comparable to doxorubicin, while (quinolin-3-yl)-1,2-dihydroisoquinoline-7-carbonitrile (9), 2,3-dihydrothiazole-5-carboxamide (24), thieno [3,4-c] pyridine-4(5H)-one (5), cyclopenta[b]thiophene-3-carboxamide (33) and (quinolin-3-yl)-6-stryl-1,2-dihydroisoquinoline-7-carbonitrile (10) exhibited moderate activity, lower than doxorubicin.

DOI: https://doi.org/10.1515/acph-2016-0016 | Journal eISSN: 1846-9558 | Journal ISSN: 1330-0075
Language: English
Page range: 155 - 171
Accepted on: Nov 5, 2015
Published on: May 28, 2016
Published by: Croatian Pharmaceutical Society
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Related subjects:

© 2016 Mostafa M. Ghorab, Mansour S. Alsaid, Mohammed S. Al-Dosari, Fatma A. Ragab, Abdullah A. Al-Mishari, Abdulaziz N. Almoqbil, published by Croatian Pharmaceutical Society
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.