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Borkar MR, Martis EAF, Nandan S, Patil RH, Shelar A, Iyer KR, Raikuvar K, Desle D, Coutinho EC. Identification of potential antileishmanial 1,3-disubstituted-4-hydroxy-6-methylpyridin-2(1H)-ones, in vitro metabolic stability, cytotoxicity and molecular modeling studies. Chem Biol Interact 2022; 351:109758. [PMID: 34826397 DOI: 10.1016/j.cbi.2021.109758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 11/10/2021] [Accepted: 11/21/2021] [Indexed: 11/18/2022]
Abstract
We report the synthesis and in vitro evaluation of 1,3-disubstituted-4-hydroxy-6-methylpyridin-2(1H)-one derivatives against Leishmania donovani. Amongst the compound library synthesized, molecules 3d, 3f, 3h, 3i, 3l, and 3m demonstrated substantial dose-dependent killing of the promastigotes. Their IC50 values range from 55.0 to 77.0 μg/ml, with 3m (IC50 55.75 μg/ml) being equipotent with amphotericin B (IC50 50.0 μg/ml, used as standard). The most active compound 3m, is metabolically stable in rat liver microsomes. Furthermore, the molecules are highly specific against leishmania as shown by their weak antibacterial and antifungal activity. In vitro cytotoxicity studies show the compounds lack any cytotoxicity. Furthermore, molecular modeling studies show plausibility of binding to Leishmania donovani topoisomerase 1 (LdTop1). Structure activity relationships reveal bulky substitutions on the pyridone nitrogen are well-tolerated, and such compounds have better binding affinity. Intramolecular hydrogen bonds confer some rigidity to the molecules, rendering a degree of planarity akin to topotecan. Taken together, we emphasis the merits of molecules possessing the 1,3-disubstituted-4-hydroxy-6-methylpyridin-2(1H)-one skeleton as potential antileishmanial agents warranting further investigation.
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Affiliation(s)
- Maheshkumar R Borkar
- Department of Pharmaceutical Chemistry, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai, 400 056, India; Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Sunder Nagar, Kalina, Santacruz (E), Mumbai, 400 098, India.
| | - Elvis A F Martis
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Sunder Nagar, Kalina, Santacruz (E), Mumbai, 400 098, India
| | - Santosh Nandan
- Ambernath Organics Pvt. Ltd., 222, The Summit Business Bay, Andheri (E), Mumbai, 400 093, India
| | - Rajendra H Patil
- Department of Biotechnology, Savitribai Phule Pune University, Pune, 411 007, India
| | - Amruta Shelar
- Department of Technology, Savitribai Phule Pune University, Pune, 4110 007, India
| | - Krishna R Iyer
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Sunder Nagar, Kalina, Santacruz (E), Mumbai, 400 098, India
| | - Kavita Raikuvar
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Sunder Nagar, Kalina, Santacruz (E), Mumbai, 400 098, India
| | - Deepali Desle
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Sunder Nagar, Kalina, Santacruz (E), Mumbai, 400 098, India
| | - Evans C Coutinho
- Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Sunder Nagar, Kalina, Santacruz (E), Mumbai, 400 098, India
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Li J, Tan H, An Y, Shao Z, Zhao S. Synthesis and DABCO‐induced demethylation of 3‐cyano‐4‐methoxy‐2‐pyridone derivatives. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Jing Li
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University No.2999 North Renmin Road Shanghai 201620 People's Republic of China
| | - Hong‐Ru Tan
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University No.2999 North Renmin Road Shanghai 201620 People's Republic of China
| | - Yu‐Long An
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University No.2999 North Renmin Road Shanghai 201620 People's Republic of China
| | - Zhi‐Yu Shao
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University No.2999 North Renmin Road Shanghai 201620 People's Republic of China
| | - Sheng‐Yin Zhao
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University No.2999 North Renmin Road Shanghai 201620 People's Republic of China
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Metal‐Free Based Domino Approach to Pyrano‐Fused‐Pyrido[3,2,1‐
jk
]carbazolones: Antibacterial and Molecular Docking Studies. ChemistrySelect 2019. [DOI: 10.1002/slct.201902149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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