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Xu M, Di D, Fan L, Ma Y, Wei X, Shang EX, Onakpa MM, Johnson OO, Duan JA, Che CT, Zhou J, Zhao M. Structurally diverse (9β-H)-pimarane derivatives with six frameworks from the leaves of Icacina oliviformis and their cytotoxic activities. PHYTOCHEMISTRY 2023; 214:113804. [PMID: 37541354 DOI: 10.1016/j.phytochem.2023.113804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/25/2023] [Accepted: 07/25/2023] [Indexed: 08/06/2023]
Abstract
Thirteen previously undescribed (9β-H)-pimarane derivatives, icacinolides A-G (1-7) and oliviformislactones C-H (8-13), together with four known analogs (14-17), were isolated from the leaves of Icacina oliviformis. Their structures were constructed by extensive spectroscopic analysis, 13C NMR-DP4+ analysis, ECD calculation, single-crystal X-ray diffraction, and chemical methods. These structurally diverse isolates were classified into six framework types: rearranged 3-epi-17-nor-(9β-H)-pimarane, rearranged 17-nor-(9β-H)-pimarane, 16-nor-(9β-H)-pimarane, 17-nor-(9β-H)-pimarane, 17,19-di-nor-(9β-H)-pimarane, and (9β-H)-pimarane. Among them, compounds 1, 5, and 7 were the first examples of three rearranged 3-epi-17-nor-(9β-H)-pimaranes featuring a unique (11S)-carboxyl-9-oxatricyclo[5.3.1.02,7]dodecane motif with contiguous stereogenic centers, whereas their C-3 epimers, compounds 2-4 and 6 were the second examples of four rearranged 17-nor-(9β-H)-pimaranes. Additionally, compounds 8 and 12/13 represented the second examples of a 16-nor-(9β-H)-pimarane and two 17,19-di-nor-(9β-H)-pimaranes, respectively. In cytotoxic bioassay, compound 2 exhibited significant cytotoxic against HT-29 with IC50 values of 7.88 μM, even stronger than 5-fluorouracil, and 15 showed broad-spectrum cytotoxic activities against HepG2, HT-29, and MIA PaCa-2 with IC50 values of 11.62, 9.77, and 4.91 μM, respectively. Meanwhile, a preliminary structure-activity relationship suggested that 3,20-epoxy, 6,19-lactone, 2-OH, 7-OH, and 8-OH in (9β-H)-pimarane derivatives might be active groups, whereas ring C aromatization may decrease the cytotoxic activities.
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Affiliation(s)
- Mingming Xu
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Di Di
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Lu Fan
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Yingrun Ma
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Xinyi Wei
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Er-Xin Shang
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Monday M Onakpa
- Department of Veterinary Pharmacology and Toxicology, University of Abuja, Abuja, 920001, Nigeria
| | - Oluwatosin O Johnson
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Lagos, CMUL Campus, Lagos, 100254, Nigeria
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China
| | - Chun-Tao Che
- Department of Pharmaceutical Sciencesollege of Pharmacy, the University of Illinois at Chicago, Chicago, IL, 60612, United States
| | - Junfei Zhou
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China.
| | - Ming Zhao
- Jiangsu Collaborative Innovation Centre of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resource Industrialization and Formulae Innovative Medicine, Key Laboratory of Chinese Medicinal Resource Recycling Utilization Under National Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, Jiangsu, 210023, People's Republic of China; Department of Pharmaceutical Sciencesollege of Pharmacy, the University of Illinois at Chicago, Chicago, IL, 60612, United States.
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Godzieba M, Ciesielski S. Natural DNA Intercalators as Promising Therapeutics for Cancer and Infectious Diseases. Curr Cancer Drug Targets 2021; 20:19-32. [PMID: 31589125 DOI: 10.2174/1568009619666191007112516] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/11/2019] [Accepted: 06/24/2019] [Indexed: 02/08/2023]
Abstract
Cancer and infectious diseases are one of the greatest challenges of modern medicine. An unhealthy lifestyle, the improper use of drugs, or their abuse are conducive to the increase of morbidity and mortality caused by these diseases. The imperfections of drugs currently used in therapy for these diseases and the increasing problem of drug resistance have forced a search for new substances with therapeutic potential. Throughout history, plants, animals, fungi and microorganisms have been rich sources of biologically active compounds. Even today, despite the development of chemistry and the introduction of many synthetic chemotherapeutics, a substantial part of the new compounds being tested for treatment are still of natural origin. Natural compounds exhibit a great diversity of chemical structures, and thus possess diverse mechanisms of action and molecular targets. Nucleic acids seem to be a good molecular target for substances with anticancer potential in particular, but they may also be a target for antimicrobial compounds. There are many types of interactions of small-molecule ligands with DNA. This publication focuses on the intercalation process. Intercalators are compounds that usually have planar aromatic moieties and can insert themselves between adjacent base pairs in the DNA helix. These types of interactions change the structure of DNA, leading to various types of disorders in the functioning of cells and the cell cycle. This article presents the most promising intercalators of natural origin, which have aroused interest in recent years due to their therapeutic potential.
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Affiliation(s)
- Martyna Godzieba
- Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, ul. Sloneczna 45 G, 10-917 Olsztyn, Poland
| | - Slawomir Ciesielski
- Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, ul. Sloneczna 45 G, 10-917 Olsztyn, Poland
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Zhao M, Cheng J, Guo B, Duan J, Che CT. Momilactone and Related Diterpenoids as Potential Agricultural Chemicals. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7859-7872. [PMID: 29996047 PMCID: PMC6592423 DOI: 10.1021/acs.jafc.8b02602] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Momilactones are allelochemicals in rice and moss defense. Momilactone-like compounds are therefore considered important secondary metabolites for plant defense. They may serve as promising lead compounds for crop-friendly herbicides as well as antifungal and antibacterial agents. Many of these substances possess potent cytotoxicity property against cancer cell lines as well. The present paper is the first review on these versatile molecules, focusing on the structure, biological activity, chemical synthesis, and biosynthesis of the naturally occurring momilactone-like molecules reported from 1973 to 2017.
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Affiliation(s)
- Ming Zhao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
- Corresponding Author. Tel: +86-25-85811916. Fax: +86-25-85811916
| | - Jianjun Cheng
- iHuman Institute, ShanghaiTech University, 393 Middle Huaxia Road, Pudong District, Shanghai 201210, China
| | - Brian Guo
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chun-Tao Che
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, United States
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Brito MV, Marques RA, Mattos MC, Alvarenga ME, Valdo AKSM, Oliveira MCF, Martins FT. Semisynthesis and absolute configuration of a novel rearranged 19,20-δ-lactone (9βH)-pimarane diterpene. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:870-875. [PMID: 30080159 DOI: 10.1107/s2053229618009452] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 07/02/2018] [Indexed: 12/12/2022]
Abstract
Annonalide (3β,20-epoxy-3α,16-dihydroxy-15-oxo-7-pimaren-19,6β-olide, C20H26O6, 1) is the major (9βH)-pimarane diterpene isolated from tubers of Cassimirella ampla, and it exhibits cytotoxic properties upon interaction with ctDNA. We have prepared new derivatives of 1 by modification of the (9βH)-pimarane backbone and report here the semisynthesis and absolute configuration of a novel rearranged 19,20-δ-lactone (9βH)-pimarane. Our approach was the reduction of the carbonyl groups of 1 with sodium borohydride, at positions C15 (no stereoselectivity) and C3 (stereoselective reduction), followed by rearrangement of the 6,19-γ-lactone ring into the six-membered 19,20-δ-lactone ring in 4a (3β,6β,16-trihydroxy-7-pimaren-19,20β-olide monohydrate, C20H30O6·H2O). The absolute structure of the new compound, 4a, was determined unambiguously with a Flack parameter x of -0.01 (11), supporting the stereochemistry assignment of 1 redetermined here. Besides the changes in the pattern of covalent bonds caused by reduction and lactone rearrangement, the conformation of one of the three fused cyclohexane rings is profoundly different in 4a, adopting a chair conformation instead of the boat shape found in 1. Furthermore, the intramolecular hydrogen bond present in 1 is lost in new compound 4a, due to hydrogen bonding between the 3-OH group and the solvent water molecule.
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Affiliation(s)
- Maria V Brito
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE 60020-181, Brazil
| | - Ricardo A Marques
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE 60020-181, Brazil
| | - Marcos C Mattos
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE 60020-181, Brazil
| | - Meiry E Alvarenga
- Institute of Chemistry, Federal University of Goiás, Goiânia, GO 74001-970, Brazil
| | | | - Maria C F Oliveira
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE 60020-181, Brazil
| | - Felipe T Martins
- Institute of Chemistry, Federal University of Goiás, Goiânia, GO 74001-970, Brazil
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Marques RA, Gomes AO, de Brito MV, dos Santos AL, da Silva GS, de Lima LB, Nunes FM, de Mattos MC, de Oliveira FC, do Ó Pessoa C, de Moraes MO, de Fátima Â, Franco LL, Silva MDM, Dantas MDDA, Santos JC, Figueiredo IM, da Silva-Júnior EF, de Aquino TM, de Araújo-Júnior JX, de Oliveira MC, Leslie Gunatilaka A. Annonalide and derivatives: Semisynthesis, cytotoxic activities and studies on interaction of annonalide with DNA. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 179:156-166. [DOI: 10.1016/j.jphotobiol.2018.01.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/15/2018] [Accepted: 01/16/2018] [Indexed: 12/23/2022]
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Graebner IB, Mostardeiro MA, Ethur EM, Burrow RA, Dessoy EC, Morel AF. Diterpenoids from Humirianthera ampla. PHYTOCHEMISTRY 2000; 53:955-959. [PMID: 10820811 DOI: 10.1016/s0031-9422(99)00585-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Two diterpenoids, humirianthol and acrenol, as well as the known annonalide, were isolated from Humirianthera ampla. Humirianthol and acrenol were determined by 1D and 2D NMR spectroscopic techniques to be 3 beta,20:14 beta,16-diepoxy-3 alpha, 15 alpha-dihydroxy-7-pimaren-19,6 beta-olide and 3 beta,20-epoxy-3 alpha,15,16-trihydroxy-7-pimaren-19,6 beta-olide, respectively.
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Affiliation(s)
- I B Graebner
- Departamento de Química (NPPN), Universidade Federal de Santa Maria, RS, Brazil
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