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Gülten Ş, Gezer U, Gündoğan EA. Fast and Efficient One-Pot Three-Component Synthesis of Some 1,2,3,4- Tetrahydro-6-methyl-N-phenyl-5-pyrimidinecarboxamide Derivatives via Biginelli Condensation Reaction. LETT ORG CHEM 2020. [DOI: 10.2174/1570178616666190819142221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tetrahydropyrimidine (THPM) synthesis has an enormous importance in organic chemistry
and especially in pharmaceutical applications. Pyrimidines are the most active class of N-containing
heterocyclic compounds and have different biological properties. The heterocyclic ring system with a
thio group occupy a unique position in medicinal chemistry. This type of compounds play an important
role in synthetic drugs and in biological processes. Dihydropyrimidinethione derivatives occur widely
in nature. Several modifications of THPM-5-carboxamides have attracted considerable interest of medicinal
chemists due to their pharmacological and therapeutic properties. A series of 1,2,3,4-tetrahydro-
2-pyrimidinone/thione derivatives bearing a phenylcarbamoyl group at C-5 position were synthesized
by one-pot three-component Biginelli condensation reaction. The reaction of acetoacetanilide as the
1,3-dicarbonyl component with various aromatic aldehydes and urea/thiourea in the presence of a catalytic
amount of p-toluenesulfonic acid monohydrate (PTSA·H2O) or concentrated HCl as an efficient
catalyst leads to Biginelli compounds. We have prepared eight THPM 5-carboxamide derivatives, four
of them are new compounds. Their structures were confirmed by spectroscopic techniques and elemental
analysis. These compounds have potential applications in organic synthesis and medicinal
chemistry. We have synthesized a series of THPM-5-carboxamides by simple and efficient threecomponent
Biginelli condensation reaction. Significant benefits of the present procedure include: a)
application of inexpensive, non-toxic, environmentally friendly and easily available catalysts, b) the
reactions are easy to carry out without high temperature and the workup is very simple, c) the required
reaction times are relatively short (30-80 min with HCl and 8-24 h with PTSA·H2O), d) compatibility
with various functional groups, e) the products are isolated in good to excellent yields (50-95%).
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Affiliation(s)
- Şirin Gülten
- Department of Chemistry, Faculty of Arts and Sciences, Canakkale Onsekiz Mart University, 17020, Canakkale, Turkey
| | - Ufuk Gezer
- Department of Chemistry, Faculty of Arts and Sciences, Canakkale Onsekiz Mart University, 17020, Canakkale, Turkey
| | - Elmas Aksanli Gündoğan
- Department of Chemistry, Faculty of Arts and Sciences, Canakkale Onsekiz Mart University, 17020, Canakkale, Turkey
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Synthesis, Characterization, and Anticancer Activities Evaluation of Compounds Derived from 3,4-Dihydropyrimidin-2(1 H)-one. Molecules 2019; 24:molecules24050891. [PMID: 30832453 PMCID: PMC6429579 DOI: 10.3390/molecules24050891] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 01/04/2023] Open
Abstract
3,4-dihydropyrimidin-2(1H)-one compounds (DHPMs) possess extensive biological activities and are mainly prepared via Biginelli reaction and N-alkylation. In the present study, selective alkylation of N¹ was investigated by using tetrabutylammonium hydroxide. In vitro cytotoxicity study on all synthesized compounds demonstrated that introduction of the aryl chain in the R³ as well as the low electron-donating group in the R¹ of DHPMs contributed to the anti-proliferative potency. A larger value of the partition coefficient (Log P) and suitable polar surface area (PSA) values were both found to be important in order to maintain the antitumor activity. The results from in vivo study indicated the great potential of compound 3d to serve as a lead compound for novel anti-tumor drugs to treat glioma. Pharmacophore study regarding the structure-activity relations of DHPMs were also conducted. Our results here could provide a guide for the design of novel bioactive 3,4-dihydropyrimidin-2(1H)-one compounds.
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de Oliveira Viana J, Scotti MT, Scotti L. Molecular Docking Studies in Multitarget Antitubercular Drug Discovery. METHODS IN PHARMACOLOGY AND TOXICOLOGY 2018. [DOI: 10.1007/7653_2018_28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Liu P, Hao J, Zhang Z. A General, Effcient and Green Procedure for Synthesis of Dihydropyrimidine-5-carboxamides in Low Melting Betaine Hydrochloride/Urea Mixture. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201500862] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Chitre TS, Asgaonkar KD, Miniyar PB, Dharme AB, Arkile MA, Yeware A, Sarkar D, Khedkar VM, Jha PC. Synthesis and docking studies of pyrazine-thiazolidinone hybrid scaffold targeting dormant tuberculosis. Bioorg Med Chem Lett 2016; 26:2224-8. [PMID: 27017114 DOI: 10.1016/j.bmcl.2016.03.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 10/22/2022]
Abstract
The persistence of Mycobacterium tuberculosis (MTB) in dormant stage assists the pathogen to develop resistance against current antimycobactrial drugs. To address this issue, we report herein the synthesis of N-(4-oxo-2 substituted thiazolidin-3 yl) pyrazine-2-carbohydrazide derivatives designed by following the molecular hybridization approach using pyrazine and thiazolidenone scaffolds. The compounds were evaluated against MTB H37Ra and Mycobacterium bovis BCG in dormancy model. Most of the compounds had IC50 values in 0.3-1 μg/ml range. The active compounds were further tested for anti-proliferative activity against THP-1, Panc-1, A549, and MCF-7 cell lines using MTT assay and exhibited no significant cytotoxicity. We also report molecular docking studies using active analogs and MTB - Decaprenylphosphoryl-β-d-ribose-2'-epimerase (DprE1) to rationalize the biological activity and to provide an insight into the probable mechanism of action and binding mode of hybridized structures. The results obtained validate the use of molecular hybridization approach and also suggest that reported compounds can provide a novel pharmacophore to synthesize lead compounds against dormat MTB.
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Affiliation(s)
- T S Chitre
- AISSMS College of Pharmacy, Kennedy Road, Pune, Maharashtra, India.
| | - K D Asgaonkar
- AISSMS College of Pharmacy, Kennedy Road, Pune, Maharashtra, India
| | - P B Miniyar
- Sinhgad Institute of Pharmacy, Narhe, Pune, Maharashtra, India
| | - A B Dharme
- AISSMS College of Pharmacy, Kennedy Road, Pune, Maharashtra, India
| | - M A Arkile
- Combichem-Bioresource Center, OCD, National Chemical Laboratory, Pune, Maharashtra, India
| | - A Yeware
- Combichem-Bioresource Center, OCD, National Chemical Laboratory, Pune, Maharashtra, India
| | - D Sarkar
- Combichem-Bioresource Center, OCD, National Chemical Laboratory, Pune, Maharashtra, India
| | - V M Khedkar
- Combichem-Bioresource Center, OCD, National Chemical Laboratory, Pune, Maharashtra, India; School of Health Sciences, University of KwaZulu Natal, Westville Campus, Durban 4000, South Africa
| | - P C Jha
- School of Chemical Sciences, Central University of Gujarat, Sector-30, Gandhinagar 38200, Gujarat, India
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