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Sharon N, Ugale VG, Padmaja P, Lokwani D, Salunkhe C, Shete P, Reddy PN, Kulkarni PP. Development of novel 9H-carbazole-4H-chromene hybrids as dual cholinesterase inhibitors for the treatment of Alzheimer's disease. Mol Divers 2024:10.1007/s11030-024-10859-z. [PMID: 38683486 DOI: 10.1007/s11030-024-10859-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/22/2024] [Indexed: 05/01/2024]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease affecting mental ability and neurocognitive functions. Cholinesterase enzymes affect concentration of acetylcholine in the brain, leading to dementia. Thus, there is an urgent need to develop novel dual cholinesterase inhibitors as possible anti-AD drugs. Herein, we have designed and synthesized a novel series of 9H-carbazole-4H-chromenes 4(a-l) through a one-pot three-component reaction of salicylaldehydes (1), hydroxycarbazole (2) and N-methyl-1-(methylthio)-2-nitroethenamine (3) using triethylamine as a catalyst in ethanol. Synthetic transformation involves the formation of two C-C bonds and one C-O bond in a single step to obtain desired analogs. The rapid one-pot reaction does not require chromatographic purification, proceeds under mild conditions, and exhibits good tolerance toward various functional groups with high synthetic yields. Synthesized compounds were screened for cytotoxicity using MTT assay in BV-2 microglial cells. These compounds were then in-vitro screened against acetylcholinesterase (AChE) and butyrylcholinestrase (BuChE) enzymes. Most of these ligands have shown dual cholinesterase inhibitory activity compared to the standard drug. In-vitro results showed that the compounds 4a and 4d have promising anticholinesterase response against both cholinesterase enzymes (4a, AChE IC50: 5.76 µM, BuChE IC50: 48.98 µM; 4d, AChE IC50: 3.58 µM, BuChE IC50: 42.73 µM). In-vitro results were validated by molecular docking and dynamic simulation at 100 ns. Molecular docking and molecular dynamics simulation study strongly supported structural features present in these analogs. Together, these analogs could be exploited to develop dual anti-cholinesterase candidates to treat AD in combination with other drugs.
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Affiliation(s)
- Nissi Sharon
- Department of Chemistry, School of Science, GITAM (Deemed to Be University), Hyderabad, India
| | - Vinod G Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India.
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agharkar Road, Pune, Maharashtra, India.
| | - Pannala Padmaja
- Centre for Semio Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Deepak Lokwani
- Department of Pharmaceutical Chemistry, Rajarshi Shahu College of Pharmacy, Buldana, Maharashtra, India
| | - Chandradeep Salunkhe
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Padmaja Shete
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agharkar Road, Pune, Maharashtra, India
| | | | - Prasad P Kulkarni
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agharkar Road, Pune, Maharashtra, India.
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2
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Malathi V, Sharon N, Padmaja P, Lokwani D, Khadse S, Chaudhari P, Shirkhedkar AA, Reddy PN, Ugale VG. Design, synthesis, and pharmacological evaluation of [1, 3] dioxolo-chromeno[2,3-b]pyridines as anti-seizure agents. Mol Divers 2023; 27:1809-1827. [PMID: 36214960 DOI: 10.1007/s11030-022-10538-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/29/2022] [Indexed: 10/17/2022]
Abstract
An efficient one-pot three-component reaction for the synthesis of [1,3]dioxolo[4',5':6,7]chromeno[2,3-b]pyridines 4(a-i) has been developed. Synthesis was achieved by reacting sesamol (1), aromatic aldehydes 2(a-i), and 2-aminopropene-1,1,3-tricarbonitrile (3) in the presence of triethylamine at 100 °C under neat reaction condition. Simple operational procedure, broad substrate scope, column chromatography free separations, and high yield of products make it an efficient and largely acceptable synthetic strategy. Synthesized compounds 4(a-i) were further screened for preliminary anticonvulsant activity using MES and scPTZ tests. These analogs were also checked for neurotoxicity and hepatotoxicity. Selected active compounds have been then screened quantitatively to determine ED50 and TD50 values. Analog 4h was found effective in both preclinical seizure models with significant therapeutic/toxicity profile (4h: ED50 = 34.7 mg/kg, MES test; ED50 = 37.9 mg/kg, scPTZ test; TD50 = 308.7 mg/kg). Molecular dynamic simulation for 100 ns of compound 4h-complexed with GABAA receptor revealed good thermodynamic behavior and fairly stable interactions (4h, Docking score = - 10.94). In conclusion, effective synthetic strategy, significant anticonvulsant activity with good toxicity profile and detailed molecular modeling studies led us to anticipate the emergence of these analogs as valid leads for the development of future effective neurotherapeutic agents.
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Affiliation(s)
- Visarapu Malathi
- Department of Chemistry, School of Science, Gitam Deemed to be University, Hyderabad, TS, India
| | - Nissi Sharon
- Department of Chemistry, School of Science, Gitam Deemed to be University, Hyderabad, TS, India
| | - Pannala Padmaja
- Centre for Semio Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Deepak Lokwani
- Rajarshi Shahu College of Pharmacy, Buldana, Maharashtra, India
| | - Saurabh Khadse
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India
| | - Prashant Chaudhari
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India
| | - Atul A Shirkhedkar
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India
| | | | - Vinod G Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India.
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agarkar Road, Pune, Maharashtra, 411004, India.
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Patil VR, Dhote AM, Patil R, Amnerkar ND, Lokwani DK, Ugale VG, Charbe NB, Firke SD, Chaudhari P, Shah SK, Mehta CH, Nayak UY, Khadse SC. Identification of structural scaffold from interbioscreen (IBS) database to inhibit 3CLpro, PLpro, and RdRp of SARS-CoV-2 using molecular docking and dynamic simulation studies. J Biomol Struct Dyn 2023; 41:13168-13179. [PMID: 36757134 DOI: 10.1080/07391102.2023.2175377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 01/15/2023] [Indexed: 02/10/2023]
Abstract
A novel coronavirus SARS-CoV-2 has caused a worldwide pandemic and remained a severe threat to the entire human population. Researchers worldwide are struggling to find an effective drug treatment to combat this deadly disease. Many FDA-approved drugs from varying inhibitory classes and plant-derived compounds are screened to combat this virus. Still, due to the lack of structural information and several mutations of this virus, initial drug discovery efforts have limited success. A high-resolution crystal structure of important proteins like the main protease (3CLpro) that are required for SARS-CoV-2 viral replication and polymerase (RdRp) and papain-like protease (PLpro) as a vital target in other coronaviruses still presents important targets for the drug discovery. With this knowledge, scaffold library of Interbioscreen (IBS) database was explored through molecular docking, MD simulation and postdynamic binding free energy studies. The 3D docking structures and simulation data for the IBS compounds was studied and articulated. The compounds were further evaluated for ADMET studies using QikProp and SwissADME tools. The results revealed that the natural compounds STOCK2N-00385, STOCK2N-00244, and STOCK2N-00331 interacted strongly with 3CLpro, PLpro, and RdRp, respectively, and ADMET data was also observed in the range of limits for almost all the compounds with few exceptions. Thus, it suggests that these compounds may be potential inhibitors of selected target proteins, or their structural scaffolds can be further optimized to obtain effective drug candidates for SARS-CoV-2. The findings of in-silico data need to be supported by in-vivo studies which could shed light on understanding the exact mode of inhibitory action.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Vikas R Patil
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Karvand Naka Shirpur, Dist. Dhule, Maharashtra, India
| | - Ashish M Dhote
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Karvand Naka Shirpur, Dist. Dhule, Maharashtra, India
| | - Rina Patil
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Karvand Naka Shirpur, Dist. Dhule, Maharashtra, India
| | - Nikhil D Amnerkar
- Department of Pharmaceutical Chemistry, Adv. V. R. Manohar Institute of Diploma in Pharmacy (Govt.-Aided), Nagpur, Nagpur, Maharashtra, India
| | - Deepak K Lokwani
- Department of Pharmaceutical Chemistry, Rajarshi Shahu College of Pharmacy, Buldana, Maharashtra, India
| | - Vinod G Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Karvand Naka Shirpur, Dist. Dhule, Maharashtra, India
| | - Nitin B Charbe
- Center for Pharmacometrics and Systems Pharmacology, Department of Pharmaceutics, College of Pharmacy, University of Florida, Orlando, Florida, USA
| | - Sandip D Firke
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Karvand Naka Shirpur, Dist. Dhule, Maharashtra, India
| | - Prashant Chaudhari
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Karvand Naka Shirpur, Dist. Dhule, Maharashtra, India
| | - Sapan K Shah
- Department of Pharmaceutical Chemistry, Priyadarshini J. L. College of Pharmacy, Nagpur, Maharashtra, India
| | - Chetan H Mehta
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Usha Y Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Saurabh C Khadse
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Karvand Naka Shirpur, Dist. Dhule, Maharashtra, India
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4
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Dhote AM, Patil VR, Lokwani DK, Amnerkar ND, Ugale VG, Charbe NB, Bhongade BA, Khadse SC. Strategic analyses to identify key structural features of antiviral/antimalarial compounds for their binding interactions with 3CLpro, PLpro and RdRp of SARS-CoV-2: in silico molecular docking and dynamic simulation studies. J Biomol Struct Dyn 2022; 40:11914-11931. [PMID: 34431452 DOI: 10.1080/07391102.2021.1965912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Severe acute respiratory syndrome coronavirus (SARS-CoV-2), a novel member of the betacoronavirus family is a single-stranded RNA virus that has spread worldwide prompting the World Health Organization to declare a global pandemic. This creates an alarming situation and generates an urgent need to develop innovative therapeutic agents. In this context, an in silico molecular docking and molecular dynamics (MD) simulation study on the existing 58 antiviral and antimalarial compounds was performed on 3CLpro, PLpro and RdRp SARS-CoV-2 proteins. The antiviral compounds are best fitted in the binding pockets and interact more profoundly with the amino acid residues compared to antimalarial compounds. An HIV protease inhibitor, saquinavir showed a good dock score and binding free energy with varied binding interactions against 3CLpro and PLpro. While, adefovir, a nucleotide HBV DNA polymerase inhibitor exhibited good dock score and binding interactions against RdRp. Although, the antimalarial compounds showed relatively less dock score but were found to be crucial in displaying essential binding interactions with these proteins. The MD simulation runs for 100 ns on 3CLpro-saquinavir, PLpro-saquinavir and RdRp-adefovir complexes using Desmond revealed fairly stable nature of interactions. This study helped in understanding the key interactions of the vital functionalities that provide a concrete base to develop lead molecules effective against SARS-CoV-2.
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Affiliation(s)
- Ashish M Dhote
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Maharashtra, India
| | - Vikas R Patil
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Maharashtra, India
| | - Deepak K Lokwani
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Maharashtra, India
| | - Nikhil D Amnerkar
- Department of Pharmaceutical Chemistry, Adv. V. R. Manohar Institute of Diploma in Pharmacy, Nagpur, India
| | - Vinod G Ugale
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Maharashtra, India
| | - Nitin B Charbe
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M University, Kingsville, TX, USA
| | - Bhoomendra A Bhongade
- Department of Pharmaceutical Chemistry, RAK College of Pharmaceutical Sciences, RAK Medical & Health Sciences University, Ras Al Khaimah, UAE
| | - Saurabh C Khadse
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Maharashtra, India
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5
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Padmaja P, Reddy PN, Reddy BS, Tiwari AK, Ugale VG, Komati A, Sridhar B. Design, synthesis, in vitro α-glucosidase inhibitory, antioxidant activity and molecular docking studies of novel pyridine linked imidazo[1,2-a]pyridine derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Chaudhari PJ, Bari SB, Surana SJ, Shirkhedkar AA, Bonde CG, Khadse SC, Ugale VG, Nagar AA, Cheke RS. Discovery and Anticancer Activity of Novel 1,3,4-Thiadiazole- and Aziridine-Based Indolin-2-ones via In Silico Design Followed by Supramolecular Green Synthesis. ACS Omega 2022; 7:17270-17294. [PMID: 35647471 PMCID: PMC9134430 DOI: 10.1021/acsomega.2c01198] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/26/2022] [Indexed: 05/12/2023]
Abstract
Three crucial anticancer scaffolds, namely indolin-2-one, 1,3,4-thiadiazole, and aziridine, are explored to synthesize virtually screened target molecules based on the c-KIT kinase protein. The stem cell factor receptor c-KIT was selected as target because most U.S. FDA-approved receptor tyrosine kinase inhibitors bearing the indolin-2-one scaffold profoundly inhibit c-KIT. Molecular hybrids of indolin-2-one with 1,3,4-thiadiazole (IIIa-m) and aziridine (VIa and VIc) were afforded through a modified Schiff base green synthesis using β-cyclodextrin-SO3H in water as a recyclable proton-donor catalyst. A computational study found that indolin-2,3-dione forms a supramolecular inclusion complex with β-cyclodextrin-SO3H through noncovalent interactions. A molecular docking study of all the synthesized compounds was executed on the c-KIT kinase domain, and most compounds displayed binding affinities similar to that of Sunitinib. On the basis of the pharmacokinetic significance of the aryl thioether linkage in small molecules, 1,3,4-thiadiazole hybrids (IIIa-m) were extended to a new series of 3-((5-(phenylthio)-1,3,4-thiadiazol-2-yl)imino)indolin-2-ones (IVa-m) via thioetherification using bis(triphenylphosphine)palladium(II)dichloride as the catalyst for C-S bond formation. Target compounds were tested against NCI-60 human cancer cell lines for a single-dose concentration. Among all three series of indolin-2-ones, the majority of compounds demonstrated broad-spectrum activity toward various cancer cell lines. Compounds IVc and VIc were further evaluated for a five-dose anticancer study. Compound IVc showed a potent activity of IC50 = 1.47 μM against a panel of breast cancer cell lines, whereas compound VIc exhibited the highest inhibition for a panel of colon cancer cell lines at IC50 = 1.40 μM. In silico ADME property descriptors of all the target molecules are in an acceptable range. Machine learning algorithms were used to examine the metabolites and phase I and II regioselectivities of compounds IVc and VIc, and the results suggested that these two compounds could be potential leads for the treatment of cancer.
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Affiliation(s)
- Prashant J. Chaudhari
- Department
of Pharmaceutical Chemistry, R. C. Patel
Institute of Pharmaceutical Education and Research, Shirpur, Dist-Dhule, Maharashtra 425405, India
- . Tel: +91 954 578 09 64. Fax: +912563255189
| | - Sanjaykumar B. Bari
- Department
of Pharmaceutical Chemistry, H. R. Patel
Institute of Pharmaceutical Education and Research, Shirpur, Dist-Dhule, Maharashtra 425405, India
| | - Sanjay J. Surana
- Department
of Pharmaceutical Chemistry, R. C. Patel
Institute of Pharmaceutical Education and Research, Shirpur, Dist-Dhule, Maharashtra 425405, India
| | - Atul A. Shirkhedkar
- Department
of Pharmaceutical Chemistry, R. C. Patel
Institute of Pharmaceutical Education and Research, Shirpur, Dist-Dhule, Maharashtra 425405, India
| | - Chandrakant G. Bonde
- Department
of Pharmaceutical Chemistry, School of Pharmacy and Technology Management, SVKM’s NMIMS, Dhule, Maharashtra 425405, India
| | - Saurabh C. Khadse
- Department
of Pharmaceutical Chemistry, R. C. Patel
Institute of Pharmaceutical Education and Research, Shirpur, Dist-Dhule, Maharashtra 425405, India
| | - Vinod G. Ugale
- Department
of Pharmaceutical Chemistry, R. C. Patel
Institute of Pharmaceutical Education and Research, Shirpur, Dist-Dhule, Maharashtra 425405, India
- Bioprospecting
group, Agharkar Research Institute, G. G. Agarkar Road, Pune, Maharashtra 411004, India
| | - Akhil A. Nagar
- Department
of Pharmaceutical Chemistry, R. C. Patel
Institute of Pharmaceutical Education and Research, Shirpur, Dist-Dhule, Maharashtra 425405, India
| | - Rameshwar S. Cheke
- Department
of Pharmaceutical Chemistry, Institute of
Chemical Technology, Matunga, Mumbai 400019, India
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Padmaja P, Reddy S, Ugale VG, Reddy PN. Arylidenemalononitriles as Versatile Synthons in Heterocyclic Synthesis. Curr Org Synth 2022; 19:591-615. [PMID: 35023458 DOI: 10.2174/1385272826666220113100746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 12/03/2021] [Accepted: 12/20/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Arylidenemalononitriles are valuable synthons for the construction of a variety of novel complex heterocyclic motifs, fused heterocycle derivatives and spirocyclic compounds. They are versatile chemical intermediates and have increasing applications in industry, agriculture, medicine, biological science. OBJECTIVE The aim of this review is to highlight the preparation methods and reactions of arylidenemalononitriles in the synthesis of various heterocyclic compounds. CONCLUSION In this review, we have presented the application of arylidenemalononitriles to construct a variety of heterocycles. Various catalysts for the preparation of arylidnemalononitriles have been described.
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Affiliation(s)
- Pannala Padmaja
- Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Subba Reddy
- Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Vinod G Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Maharashtra, India
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Nagaraju P, Reddy PN, Padmaja P, Ugale VG. Microwave-Assisted Synthesis of Thiazole/Benzothiazole Fused Pyranopyrimidine Derivatives and Evaluation of their Biological Activity. LETT ORG CHEM 2021. [DOI: 10.2174/1570178617999200517130138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new class of phenylbenzo[4,5]thiazolo[3,2-a]pyrano[2,3-d]pyrimidin-5-one and pyrano[
2,3-d]thiazolo[3,2-a]pyrimidine-5-one derivatives have been synthesized via one-pot threecomponent
reaction of 2-hydroxy-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-4-one and 7-hydroxy-5Hthiazolo[
3,2-a]pyrimidin-5-one with various aromatic aldehydes and (E)-N-methyl-1-(methylthio)-2-
nitroethenamine under microwave irradiation. This transformation involves the formation of thiazole or
benzothiazole fused pyranopyrimidinone ring by the formation of two C-C bonds and one C-O bond in
a single synthetic operation. This rapid one-pot reaction does not require a catalyst, it is solvent-free,
avoids chromatographic purification, and provides good yields. The synthesized compounds were
evaluated for their antiproliferative activity against four cancer cell lines, namely DU 145 (prostate
cancer), MDA-MB-231 (breast cancer), Hela (Human cervical cancer), HT-29 (Human colon cancer)
and HEK293 (human embryonic kidney cells). The results demonstrated that synthesized compounds
were selective in its cytotoxicity to cancer cells compared to normal HEK293 cells. Compound 12h
exhibited the most potent antiproliferative activity against the tested cell lines, while other test compounds
showed weak or moderate antiproliferative activity, among them 12d, 12e and 14d displayed
showed IC50 values in the low micromolar range. Molecular docking studies revealed that these active
heterocyclic molecules bind selectively in the colchicine binding site of tubulin polymer.
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Affiliation(s)
- Pallava Nagaraju
- Department of Chemistry, School of Science, Gitam University, Hyderabad (T.S), 502 329,India
| | | | - Pannala Padmaja
- Centre for Semio Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad,India
| | - Vinod G. Ugale
- Department of Pharmaceutical Chemistry, R.C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Maharashtra,India
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Nagaraju P, Reddy PN, Padmaja P, Ugale VG. Synthesis, Antiproliferative Activity and Molecular Docking of New Thiazole/Benzothiazole Fused Pyranopyrimidine Derivatives. LETT ORG CHEM 2020. [DOI: 10.2174/1570178617666200319114611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new class of 4H,5H-benzo[4,5]thiazolo[3,2-a]pyrano[2,3-d]pyrimidin-5-one and 5H,6Hpyrano[
2,3-d]thiazolo[3,2-a]pyrimidin-5-one derivatives were synthesized via the one-pot threecomponent
reaction of 2-hydroxy-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-4-one and 7-hydroxy-5Hthiazolo[
3,2-a]pyrimidin-5-one to various aromatic aldehydes and malononitrile. This domino transformation
involves the formation of pyranopyrimidine ring by the formation of three C–C bonds and one C–
O bond a single synthetic operation. As the products precipitate out of the reaction, simple filtration is
enough to gather the products, and thus, there is no need for work-up or column-chromatography. The
synthesized thiazole/benzothiazole fused pyranopyrimidine derivatives were evaluated for their antiproliferative
activity against four cancer cell lines namely DU 145 (prostate cancer), Hela (Human cervical
cancer), MDA-MB-231 (breast cancer), HT-29 (Human colon cancer) and normal cell line HEK293
(human embryonic kidney cells). The results demonstrated that synthesized compounds were selective
in its cytotoxicity to cancer cells compared to normal cells. Among these compounds, 2-amino-9-
methoxy-5-oxo-4-(3,4,5-trimethoxyphenyl)-4H,5H-benzo[4,5]thiazolo[3,2-a]pyrano[2,3-d]pyrimidine-
3-carbonitrile 4i exhibited the most potent antiproliferative activity against the tested cell lines. Molecular
docking studies revealed that these active heterocyclic molecules bind selectively in the colchicine
binding site of tubulin polymer.
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Affiliation(s)
- Pallava Nagaraju
- Department of Chemistry, School of Science, Gitam University, Hyderabad (T.S) 502 329, India
| | | | - Pannala Padmaja
- Centre for Semio Chemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Vinod G. Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Maharashtra, India
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Divyavani C, Padmaja P, Ugale VG, Reddy PN. A Review on Thiocyanation of Indoles. Curr Org Synth 2020; 18:233-247. [PMID: 33272188 DOI: 10.2174/1570179417999201203211855] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/26/2020] [Accepted: 11/02/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The thiocyanation of indoles is a direct way for carbon-sulfur bond formation to access 3-thiocyanato-indoles. 3-thiocyanato-indoles exhibit potent biological and pharmacological activities and also serve as building blocks to synthesize many biologically active sulfur-containing indole derivatives. OBJECTIVE The aim of this review is to highlight different approaches for the thiocyanation of indoles focusing on its scope and mechanism. CONCLUSION In this review, we have summarized various methods for the thiocyanation of indoles. Selection of new methods for the preparation of 3-thiocyanato-indoles will be done. The mechanistic aspects and significance of the methods are also briefly discussed.
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Affiliation(s)
- Chitteti Divyavani
- Department of Chemistry, Sri Padmavathi Women's Degree & PG College, Tirupati, Andhra Pradesh, India
| | - Pannala Padmaja
- Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | - Vinod G Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur- 425405, Maharashtra, India
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Ugale VG, Bari SB, Khadse SC, Reddy PN, Bonde CG, Chaudhari PJ. Exploring Quinazolinones as Anticonvulsants by Molecular Fragmentation Approach: Structural Optimization, Synthesis and Pharmacological Evaluation Studies. ChemistrySelect 2020. [DOI: 10.1002/slct.201904776] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Vinod G. Ugale
- Department of Pharmaceutical ChemistryR. C. Patel Institute of Pharmaceutical Education and Research, Shirpur (Dhule) 425405 Maharashtra India
| | - Sanjay B. Bari
- Department of Pharmaceutical ChemistryH. R. Patel Institute of Pharmaceutical Education and Research, Shirpur (Dhule) 425405 Maharashtra India
| | - Saurabh C. Khadse
- Department of Pharmaceutical ChemistryR. C. Patel Institute of Pharmaceutical Education and Research, Shirpur (Dhule) 425405 Maharashtra India
| | | | - Chandrakant G. Bonde
- Department of Pharmaceutical ChemistrySchool of Pharmacy and Technology Management, SVKM's NMIMS, (Dhule) 425405 Maharashtra India
| | - Prashant J. Chaudhari
- Department of Pharmaceutical ChemistryR. C. Patel Institute of Pharmaceutical Education and Research, Shirpur (Dhule) 425405 Maharashtra India
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Khadse SC, Amnerkar ND, Dave MU, Lokwani DK, Patil RR, Ugale VG, Charbe NB, Chatpalliwar VA. Quinazolin-4-one derivatives lacking toxicity-producing attributes as glucokinase activators: design, synthesis, molecular docking, and in-silico ADMET prediction. Futur J Pharm Sci 2019. [DOI: 10.1186/s43094-019-0012-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
A small library of quinazolin-4-one clubbed thiazole acetates/acetamides lacking toxicity-producing functionalities was designed, synthesized, and evaluated for antidiabetic potential as glucokinase activators (GKA). Molecular docking studies were done in the allosteric site of the human glucokinase (PDB ID: 1V4S) enzyme to assess the binding mode and interactions of synthesized hits for best-fit conformations. All the compounds were evaluated by in vitro enzymatic assay for GK activation.
Results
Data showed that compounds 3 (EC50 = 632 nM) and 4 (EC50 = 516 nM) showed maximum GK activation compared to the standards RO-281675 and piragliatin. Based on the results of the in vitro enzyme assay, docking studies, and substitution pattern, selected compounds were tested for their glucose-lowering effect in vivo by oral glucose tolerance test (OGTT) in normal rats. Compounds 3 (133 mg/dL) and 4 (135 mg/dL) exhibited prominent activity by lowering the glucose level to almost normal, eliciting the results in parallel to enzyme assay and docking studies. Binding free energy, hydrogen bonding, and π–π interactions of most active quinazolin-4-one derivatives 3 and 4 with key amino acid residues of the 1V4S enzyme were studied precisely. Preliminary in-silico absorption, distribution, metabolism, excretion, and toxicity (ADMET) prediction was carried out using SwissADME and PreADMET online software which revealed that all the compounds have the potential to become orally active antidiabetic agents as they obeyed Lipinski's rule of five.
Conclusion
The results revealed that the designed lead could be significant for the strategic design of safe, effective, and orally bioavailable quinazolinone derivatives as glucokinase activators.
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Ugale VG, Patel HM, Surana SJ. Molecular modeling studies of quinoline derivatives as VEGFR-2 tyrosine kinase inhibitors using pharmacophore based 3D QSAR and docking approach. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.07.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Ugale VG, Bari SB. Structural Exploration of Quinazolin-4(3H)-ones as Anticonvulsants: Rational Design, Synthesis, Pharmacological Evaluation, and Molecular Docking Studies. Arch Pharm (Weinheim) 2016; 349:864-880. [DOI: 10.1002/ardp.201600218] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/12/2016] [Accepted: 09/14/2016] [Indexed: 01/24/2023]
Affiliation(s)
- Vinod G. Ugale
- Department of Pharmaceutical Chemistry; R. C. Patel Institute of Pharmaceutical Education and Research; Shirpur (Dhule) Maharashtra India
| | - Sanjay B. Bari
- Department of Pharmaceutical Chemistry; H. R. Patel Institute of Pharmaceutical Education and Research; Shirpur (Dhule) Maharashtra India
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Ugale VG, Bari SB. Identification of potential Gly/NMDA receptor antagonists by cheminformatics approach: a combination of pharmacophore modelling, virtual screening and molecular docking studies. SAR QSAR Environ Res 2016; 27:125-145. [PMID: 26911562 DOI: 10.1080/1062936x.2015.1136679] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The Gly/NMDA receptor has become known as potential target for the management of neurodegenerative diseases. Discovery of Gly/NMDA antagonists has thus attracted much attention in recent years. In the present research, a cheminformatics approach has been used to determine structural requirements for Gly/NMDA antagonism and to identify potential antagonists. Here, 37 quinoxaline derivatives were selected to develop a significant pharmacophore model with good certainty. The selected model was validated by leave-one-out cross-validation, an external test set, decoy set and Y-randomization test. Applicability domain was verified by the standardization approach. The validated 3D-QSAR model was used to screen virtual hits from the ZINC database by pharmacophore mapping. Molecular docking was used for assessment of receptor-ligand binding modes and binding affinities. The GlideScore and molecular interactions with critical amino acids were considered as crucial features to identify final hits. Furthermore, hits were analysed for in silico pharmacokinetic parameters and Lipinski's rule of five, demonstrating their potential as drug-like candidates. The PubChem and SciFinder search tools were used to authenticate the novelty of leads retrieved. Finally, five different leads have been suggested as putative novel candidates for the exploration of potent Gly/NMDA receptor antagonists.
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Affiliation(s)
- V G Ugale
- a Department of Pharmaceutical Chemistry , R. C. Patel Institute of Pharmaceutical Education and Research , Shirpur ( Dhule ), Maharashtra , India
| | - S B Bari
- b Department of Pharmaceutical Chemistry , H. R. Patel Institute of Pharmaceutical Education and Research , Shirpur ( Dhule ), Maharashtra , India
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Raut GS, Shirkhedkar AA, Ugale VG, Surana SJ. SIMULTANEOUS DETERMINATION OF PREDNISOLONE ACETATE AND MOXIFLOXACIN HYDROCHLORIDE IN BULK AND IN EYE DROP USING RP–HPTLC. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.749495] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ganesh S. Raut
- a R. C. Patel Institute of Pharmaceutical Education and Research, Karwand Naka, Shirpur , India
| | - Atul A. Shirkhedkar
- a R. C. Patel Institute of Pharmaceutical Education and Research, Karwand Naka, Shirpur , India
| | - Vinod G. Ugale
- a R. C. Patel Institute of Pharmaceutical Education and Research, Karwand Naka, Shirpur , India
| | - Sanjay J. Surana
- a R. C. Patel Institute of Pharmaceutical Education and Research, Karwand Naka, Shirpur , India
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Ugale VG, Patel HM, Wadodkar S, Bari SB, Shirkhedkar AA, Surana SJ. Quinazolino–benzothiazoles: Fused pharmacophores as anticonvulsant agents. Eur J Med Chem 2012; 53:107-13. [DOI: 10.1016/j.ejmech.2012.03.045] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 03/22/2012] [Accepted: 03/23/2012] [Indexed: 11/25/2022]
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