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Singh S, Dhanawat M, Gupta S, Kumar D, Kakkar S, Nair A, Verma I, Sharma P. Naturally Inspired Pyrimidines Analogues for Alzheimer's Disease. Curr Neuropharmacol 2021; 19:136-151. [PMID: 33176653 PMCID: PMC8033975 DOI: 10.2174/1570159x18666201111110136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/28/2020] [Accepted: 11/06/2020] [Indexed: 01/17/2023] Open
Abstract
Alzheimer's disease (AD) is a multifarious and developing neurodegenerative disorder. The treatment of AD is still a challenge and availability of drug therapy on the basis of symptoms is not up to the mark. In the context of existence, which is getting worse for the human brain, it is necessary to take care of all critical measures. The disease is caused due to multidirectional pathology of the body, which demands the multi-target-directed ligand (MTDL) approach. This gives hope for new drugs for AD, summarized here in with the pyrimidine based natural product inspired molecule as a lead. The review is sufficient in providing a list of chemical ingredients of the plant to cure AD and screen them against various potential targets of AD. The synthesis of a highly functionalized scaffold in one step in a single pot without isolating the intermediate is a challenging task. In few examples, we have highlighted the importance of this kind of reaction, generally known as multi-component reaction. Multi-component is a widely accepted technique by the drug discovery people due to its high atom economy. It reduces multi-step process to a one-step process, therefore the compounds library can be made in minimum time and cost. This review has highlighted the importance of multicomponent reactions by giving the example of active scaffolds of pyrimidine/fused pyrimidines. This would bring importance to the fast as well as smart synthesis of bio-relevant molecules.
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Affiliation(s)
- Shivani Singh
- Department of Pharmaceutical Sciences, Somany College of Pharmacy, Rewari, Haryana, India
- Department of Pharmaceutical Sciences, Maharishi Dayanand University, Rohtak, Haryana, India
| | - Meenakshi Dhanawat
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
| | - Sumeet Gupta
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
| | - Deepak Kumar
- Department of Pharmaceutical Sciences, Indra Gandhi University, Mirpur, Rewari Haryana, India
| | - Saloni Kakkar
- Department of Pharmaceutical Sciences, Maharishi Dayanand University, Rohtak, Haryana, India
| | - Anroop Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Inderjeet Verma
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
| | - Prerna Sharma
- Department of Pharmaceutical Sciences, M. M. College of Pharmacy, M. M. (Deemed to be University), Mullana, (Ambala), Haryana, India
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Nugraha AS, Damayanti YD, Wangchuk P, Keller PA. Anti-Infective and Anti-Cancer Properties of the Annona Species: Their Ethnomedicinal Uses, Alkaloid Diversity, and Pharmacological Activities. Molecules 2019; 24:molecules24234419. [PMID: 31816948 PMCID: PMC6930583 DOI: 10.3390/molecules24234419] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 11/30/2022] Open
Abstract
Annona species have been a valuable source of anti-infective and anticancer agents. However, only limited evaluations of their alkaloids have been carried out. This review collates and evaluates the biological data from extracts and purified isolates for their anti-infective and anti-cancer activities. An isoquinoline backbone is a major structural alkaloid moiety of the Annona genus, and more than 83 alkaloids have been isolated from this genus alone. Crude extracts of Annona genus are reported with moderate activities against Plasmodium falciparum showing larvicidal activities. However, no pure compounds from the Annona genus were tested against the parasite. The methanol extract of Annona muricata showed apparent antimicrobial activities. The isolated alkaloids from this genus including liriodenine, anonaine, asimilobine showed sensitivity against Staphylococcus epidermidis. Other alkaloids such as (+)-Xylopine and isocoreximine indicated significant anti-cancer activity against A549 and K-562 cell lines, respectively. This review revealed that the alkaloids from Annona genus are rich in structural diversity and pharmacological activities. Further exploration of this genus and their alkaloids has potential for developing novel anti-infective and anticancer drugs.
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Affiliation(s)
- Ari Satia Nugraha
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember 68121, Indonesia;
- School of Chemistry & Molecular Bioscience and Molecular Horizons, University of Wollongong, and Illawarra Health & Medical Research Institute, Wollongong, NSW 2533, Australia
- Correspondence: (A.S.N.); (P.A.K.); Tel.: +62-331-324-736 (A.S.N.); +61-2-4221-4692 (P.A.K.)
| | - Yuvita Dian Damayanti
- Drug Utilisation and Discovery Research Group, Faculty of Pharmacy, University of Jember, Jember 68121, Indonesia;
| | - Phurpa Wangchuk
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD 4878, Australia;
| | - Paul A. Keller
- School of Chemistry & Molecular Bioscience and Molecular Horizons, University of Wollongong, and Illawarra Health & Medical Research Institute, Wollongong, NSW 2533, Australia
- Correspondence: (A.S.N.); (P.A.K.); Tel.: +62-331-324-736 (A.S.N.); +61-2-4221-4692 (P.A.K.)
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Bioactive (+)-Manzamine A and (+)-8-Hydroxymanzamine A Tertiary Bases and Salts from Acanthostrongylophora Ingens and Their Preparations. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The genus Acanthostrongylophora is famous for producing a wide array of manzamine alkaloids as natural hydrochloride salts. An examination of A. ingens has now yielded two tertiary bases, (+)-8-hydroxymanzamine A (1) and (+)-manzamine A (2), by chromatography over alumina using CHCl3-MeOH-NH3·H2O as solvent. In addition, (+)-8-hydroxymanzamine A hydrochloride (3) and (+)-manzamine A hydrochloride (4) were isolated under the same conditions from the same source by silica gel chromatography. The structures of 1-4 were determined from 1D- and 2D-NMR spectra and by circular dichroism experiments, and the spectral features of the bases 1 and 2 were found to be different from those of the salts 3 and 4. Compounds 3 and 4 were deprotonated by both Al2O3 and strong base to afford 1 and 2, which were converted again to their respective salts 3 and 4. Both the compounds 1 and 3 showed equally potent in vitro antimalarial activity against chloroquine-sensitive (D6) and –resistant (W2) strains of P. falciparum (IC50= 19.5 and 22.0 ng/mL vs. 27.0 and 36.5 ng/mL, respectively), while 2 was >3-fold less potent than 4 (IC50= 20.8 and 25.8 ng/mL vs. 6.1 and 7.3 ng/mL, respectively). Compounds 1, 3 and 4 showed good antimicrobial activities against methicillin-resistant Staphylococcus aureus and Mycobacterium intracellulare and antileishmanial activity against Leishmania donovani promastigotes. In contrast, manzamine A base (2) showed relatively weaker antimicrobial, antileishmanial and cytotoxic activities [towards cancer (HepG2: Human hepatocellular carcinoma or hepatoma), and non-cancer cells (VERO: Monkey kidney fibroblast; LLC-PK11: Pig kidney epithelial)], compared with salt 4.
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