1
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Lu Y, Cao T, Li K, Lin YW, Zhu L, Huang J. Total Synthesis of Brevitaxin. Org Lett 2024. [PMID: 38856036 DOI: 10.1021/acs.orglett.4c01319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Brevitaxin was prepared in nine steps from commercially available carnosic acid. The construction of the 1,4-benzodioxin moiety involved an unique stepwise ortho-quinone-engaged [4+2] cycloaddition. Two strategic stages were employed to prepare the highly unsaturated cycloaddition precursor 3: (1) synthesizing the diene moiety (C1-C2 and C10-C20 double bonds) by regioselective ortho-quinone tautomerization, and (2) installing four sp2-hybridized carbon atoms (C3, C5, C6 and C7) in one step using a SeO2-promoted chemo- and regioselective oxidation reaction.
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Affiliation(s)
- Yang Lu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Tingting Cao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Kang Li
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Lei Zhu
- College of Pharmacy, Army Medical University, Chongqing 400038, China
| | - Jun Huang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
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2
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Jiang C, Han Z, Sun W, Tan J, Gao G, Wang X, Hua H, Zhao R, Han T. Diterpenolignans and cephalotane diterpenoids from Cephalotaxus oliveri mast. with antitumor activity. PHYTOCHEMISTRY 2024; 217:113924. [PMID: 37956886 DOI: 10.1016/j.phytochem.2023.113924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
Four undescribed naturally diterpenolignans, and two cephalotane diterpenoids, along with seven known compounds, including two pairs of enantiomers, were isolated from the twigs and leaves of Cephalotaxus oliveri Mast. Their structures were elucidated via spectroscopic data interpretation, chiral-phase HPLC analysis, NMR calculations, and electronic circular dichroism analysis. All the isolated compounds were evaluated for their cytotoxic activities against three kinds of human tumor cell lines. Among them, compound 8 exhibited the most potent activities against MCF-7, HepG2 and A549 cell lines with IC50 values of 2.83, 4.75 and 2.77 μM, respectively.
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Affiliation(s)
- Chunyu Jiang
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China
| | - Zimeng Han
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China
| | - Wen Sun
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China
| | - Jiayi Tan
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China
| | - Guiwen Gao
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China
| | - Xuan Wang
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China.
| | - Rui Zhao
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China.
| | - Tong Han
- Department of Pharmaceutical Engineering, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, 5 Xinfeng Road, Daqing, 163319, PR China.
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3
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Naeini AA, Ziegelmeier AA, Chain WJ. Recent Developments with Icetexane Natural Products. Chem Biodivers 2022; 19:e202200793. [PMID: 36215180 PMCID: PMC11067433 DOI: 10.1002/cbdv.202200793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022]
Abstract
Icetexane diterpenoids are a diverse family of natural products sourced from several species of terrestrial plants. Icetexanes exhibit a broad array of biological activities and together with their complex 6-7-6 tricyclic scaffolds, they have piqued the interest of synthetic organic chemists, natural products chemists, and biological investigators over the past four decades and were reviewed 13 years ago. This review summarizes icetexane natural products isolated since 2009, provides an overview of new synthetic approaches to the icetexane problem, and proposes an additional classification of icetexanes based on novel structures that are unlike previously isolated materials.
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Affiliation(s)
- Ali Amiri Naeini
- Department of Chemistry & Biochemistry, University of Delaware, Newark, DE 19716, United States
| | - Alexandre A Ziegelmeier
- Department of Chemistry & Biochemistry, University of Delaware, Newark, DE 19716, United States
| | - William J Chain
- Department of Chemistry & Biochemistry, University of Delaware, Newark, DE 19716, United States
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4
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Kang J, Quynh Le T, Oh CH. Recent advances in abietane/icetexane synthesis. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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Cao W, Liu T, Yang S, Liu M, Pan Z, Zhou Y, Deng X. Efficient Synthesis of Icetexane Diterpenes and Apoptosis Inducing Effect by Upregulating BiP-ATF4-CHOP Axis in Colorectal Cells. JOURNAL OF NATURAL PRODUCTS 2021; 84:2012-2019. [PMID: 34170142 DOI: 10.1021/acs.jnatprod.1c00310] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We herein present an efficient and robust synthetic strategy toward 12 icetexane diterpenes and their derivatives, which features a PPh3/DIAD-mediated rearrangement of the reduced carnosic acid derivative (2) to give (-)-barbatusol (3) in a regioselective and scalable way. MTT assay led to the identification of (+)-grandione (11) and (-)-demethylsalvicanol o-quinone derivative (9) as highly cytotoxic agents against HCT-116, COLO-205, and Caco-2 cells. Interestingly, (+)-grandione (11) induced the HCT-116 cell apoptosis in a dose-dependent manner, which might be attributed to the upregulation of the BiP-ATF4-CHOP axis and promotion of the BiP-ATF4 interactions, thereby leading to endoplasmic reticulum (ER) stress. This work not only paves an efficient and scalable pathway to access icetexane diterpenes but also provides new leads for the development of anticolorectal agents with a unique mode of action.
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Affiliation(s)
- Wei Cao
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410013 Hunan, China
| | - Tingting Liu
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410013 Hunan, China
| | - Shuting Yang
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410013 Hunan, China
| | - Moude Liu
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410013 Hunan, China
| | - Zhenghong Pan
- Guangxi Key laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China
| | - Yingjun Zhou
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410013 Hunan, China
- Hunan Key laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, 410013 Hunan, China
| | - Xu Deng
- Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410013 Hunan, China
- Hunan Key laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha, 410013 Hunan, China
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6
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Le QT, Guo L, Lee SL, Lee J, Oh CH. Gold-Catalyzed Synthesis of Icetexane Cores: Short Synthesis of Taxamairin B and Rosmaridiphenol. Org Lett 2020; 22:9225-9228. [PMID: 33206542 DOI: 10.1021/acs.orglett.0c03415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report the short synthesis of two natural products, rosmaridiphenol and taxamairin B, from key intermediates 5a and 5b, which were prepared from enynals 8a and 9b, respectively, by using a gold-catalyzed cyclization reaction. This approach can be widely applied in the synthesis of [6,7,6]-fused tricyclic compounds found in many icetexane diterpenoids.
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Affiliation(s)
- Quynh Thuy Le
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, Seongdong-gu, Seoul 04763, Korea
| | - Lihui Guo
- Department of Chemistry, Nankai University, Weijin Road, Tianjin 300071, China
| | - Seung Lyeol Lee
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, Seongdong-gu, Seoul 04763, Korea
| | - Junseong Lee
- Department of Chemistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Korea
| | - Chang Ho Oh
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, Seongdong-gu, Seoul 04763, Korea
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Li H, Liang YR, Chen SX, Wang WX, Zou Y, Nuryyeva S, Houk KN, Xiong J, Hu JF. Amentotaxins C-V, Structurally Diverse Diterpenoids from the Leaves and Twigs of the Vulnerable Conifer Amentotaxus argotaenia and Their Cytotoxic Effects. JOURNAL OF NATURAL PRODUCTS 2020; 83:2129-2144. [PMID: 32633512 DOI: 10.1021/acs.jnatprod.0c00064] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A phytochemical investigation of the MeOH extract of the leaves and twigs of Amentotaxus argotaenia, a relict vulnerable coniferous species endemic to China, led to the isolation and characterization of 35 diterpenoids/norditerpenoids. Twenty of these are new, including 11 ent-kaurane-type (amentotaxins C-M, 1-11, respectively), three icetexane-type [= 9(10→20)abeo-abietane-type (amentotaxins N-P, 12-14, respectively)], four ent-labdane-type (amentotaxins Q-T, 15-18, respectively), and two isopimarane-type [amentotaxins U (19) and V (20)] compounds. Their structures were elucidated on the basis of spectroscopic data, single-crystal X-ray diffraction, the modified Mosher's method, and electronic circular dichroism data analyses. Compounds 1-9 are rare 18-nor-ent-kaurane-type diterpenoids featuring a 4β,19-epoxy ring. All the isolates were evaluated for their cytotoxic effects against a small panel of cultured human cancer cell lines (HeLa, A-549, MDA-MB-231, SKOV3, Huh-7, and HCT-116), and some of them exhibited cytotoxicities with IC50 values ranging from 1.5 to 10.0 μM.
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Affiliation(s)
- Hao Li
- School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Yu-Ru Liang
- School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Shao-Xin Chen
- Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, No. 285 Gebaini Road, Shanghai 201203, People's Republic of China
| | - Wen-Xuan Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipolu 172, Changsha 410013, People's Republic of China
| | - Yike Zou
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Selbi Nuryyeva
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - K N Houk
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095-1569, United States
| | - Juan Xiong
- School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
| | - Jin-Feng Hu
- School of Pharmacy, Fudan University, No. 826 Zhangheng Road, Shanghai 201203, People's Republic of China
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8
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Smirnova IE, Kazakova OB, Loesche A, Hoenke S, Csuk R. Evaluation of cholinesterase inhibitory activity and cytotoxicity of synthetic derivatives of di- and triterpene metabolites from Pinus silvestris and Dipterocarpus alatus resins. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02566-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Vaccaro MC, Alfieri M, De Tommasi N, Moses T, Goossens A, Leone A. Boosting the Synthesis of Pharmaceutically Active Abietane Diterpenes in S. sclarea Hairy Roots by Engineering the GGPPS and CPPS Genes. FRONTIERS IN PLANT SCIENCE 2020; 11:924. [PMID: 32625231 PMCID: PMC7315395 DOI: 10.3389/fpls.2020.00924] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 06/05/2020] [Indexed: 05/02/2023]
Abstract
Abietane diterpenoids (ADs), synthesized in the roots of different Salvia species, such as aethiopinone, 1-oxoaethiopinone, salvipisone, and ferruginol, have a variety of known biological activities. We have shown that aethiopinone has promising cytotoxic activity against several human tumor cell lines, including the breast adenocarcinoma MCF7, HeLa, epithelial carcinoma, prostate adenocarcinoma PC3, and human melanoma A375. The low content of these compounds in natural sources, and the limited possibility to synthesize them chemically at low cost, prompted us to optimize the production of abietane diterpenoids by targeting genes of the methylerythritol phosphate (MEP) pathway, from which they are derived. Here, we report our current and ongoing efforts to boost the metabolic flux towards this interesting class of compounds in Salvia sclarea hairy roots (HRs). Silencing the gene encoding the ent-copalyl-diphosphate synthase gene (entCPPS), acting at the lateral geranylgeranyl pyrophosphate (GGPP) competitive gibberellin route, enhanced the content of aethiopinone and other ADs in S. sclarea HRs, indicating indirectly that the GGPP pool is a metabolic constraint to the accumulation of ADs. This was confirmed by overexpressing the GGPPS gene (geranyl-geranyl diphosphate synthase) which triggered also a significant 8-fold increase of abietane diterpene content above the basal constitutive level, with a major boosting effect on aethiopinone accumulation in S. sclarea HRs. A significant accumulation of aethiopinone and other AD compounds was also achieved by overexpressing the CPPS gene (copalyl diphosphate synthase) pointing to this biosynthetic step as another potential metabolic target for optimizing the biosynthesis of this class of compounds. However, by co-expressing of GGPPS and CPPS genes, albeit significant, the increase of abietane diterpenoids was less effective than that obtained by overexpressing the two genes individually. Taken together, the results presented here add novel and instrumental knowledge to a rational design of a hairy root-based platform to yield reliable amounts of aethiopinone and other ADs for a deeper understanding of their molecular pharmacological targets and potential future commercialization.
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Affiliation(s)
| | | | | | - Tessa Moses
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Antonietta Leone
- Department of Pharmacy, University of Salerno, Fisciano, Italy
- *Correspondence: Antonietta Leone,
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Mohammadhosseini M, Venditti A, Akbarzadeh A. The genusPerovskiaKar.: ethnobotany, chemotaxonomy and phytochemistry: a review. TOXIN REV 2019. [DOI: 10.1080/15569543.2019.1691013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Majid Mohammadhosseini
- Department of Chemistry, College of Basic Sciences, Shahrood Branch, Islamic Azad University, Shahrood, Iran
| | | | - Abolfazl Akbarzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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11
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Li S, Niu H, Qiao Y, Zhu R, Sun Y, Ren Z, Yuan H, Gao Y, Li Y, Chen W, Zhou J, Lou H. Terpenoids isolated from Chinese liverworts Lepidozia reptans and their anti-inflammatory activity. Bioorg Med Chem 2018; 26:2392-2400. [DOI: 10.1016/j.bmc.2018.03.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/19/2018] [Accepted: 03/26/2018] [Indexed: 01/09/2023]
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12
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Taheri Kal Koshvandi A, Heravi MM, Momeni T. Current Applications of Suzuki–Miyaura Coupling Reaction in The Total Synthesis of Natural Products: An update. Appl Organomet Chem 2018. [DOI: 10.10.1002/aoc.4210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Tayebeh Momeni
- Department of ChemistryAlzahra University Vanak Tehran Iran
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13
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Taheri Kal Koshvandi A, Heravi MM, Momeni T. Current Applications of Suzuki–Miyaura Coupling Reaction in The Total Synthesis of Natural Products: An update. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4210] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | - Tayebeh Momeni
- Department of ChemistryAlzahra University Vanak Tehran Iran
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Esquivel B, Bustos-Brito C, Sánchez-Castellanos M, Nieto-Camacho A, Ramírez-Apan T, Joseph-Nathan P, Quijano L. Structure, Absolute Configuration, and Antiproliferative Activity of Abietane and Icetexane Diterpenoids from Salvia ballotiflora. Molecules 2017; 22:E1690. [PMID: 29057832 PMCID: PMC6151488 DOI: 10.3390/molecules22101690] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 09/29/2017] [Indexed: 01/22/2023] Open
Abstract
From the aerial parts of Salvia ballotiflora, eleven diterpenoids were isolated; among them, four icetexanes and one abietane (1-5) are reported for the first time. Their structures were established by spectroscopic means, mainly ¹H- and 13C-NMR, including 1D and 2D homo- and hetero-nuclear experiments. Most of the isolated diterpenoids were tested for their antiproliferative, anti-inflammatory, and radical scavenging activities using the sulforhodamine B assay on six cancer cell lines, the TPA-induced ear edema test in mice, and the reduction of the DPPH assay, respectively. Some diterpenoids showed anti-proliferative activity, these being icetexanes 6 and 3, which were the most active with IC50 (μM) = 0.27 ± 0.08 and 1.40 ± 0.03, respectively, for U251 (human glioblastoma) and IC50 (μM) = 0.0.46 ± 0.05 and 0.82 ± 0.06 for SKLU-1 (human lung adenocarcinoma), when compared with adriamycin (IC50 (μM) = 0.08 ± 0.003 and 0.05 ± 0.003, as the positive control), respectively. Compounds 3 and 10 showed significant reduction of the induced ear edema of 37.4 ± 2.8 and 25.4 ± 3.0% (at 1.0 μmol/ear), respectively. Compound 4 was the sole active diterpenoid in the antioxidant assay (IC50 = 98. 4 ± 3.3), using α-tocopherol as the positive control (IC50 (μM) = 31.7 ± 1.04). The diterpenoid profile found is of chemotaxonomic relevance and reinforces the evolutionary link of S. ballotiflora with other members of the section Tomentellae.
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Affiliation(s)
- Baldomero Esquivel
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior, Ciudad Universitaria, Mexico City 04510, Mexico.
| | - Celia Bustos-Brito
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior, Ciudad Universitaria, Mexico City 04510, Mexico.
| | - Mariano Sánchez-Castellanos
- Facultad de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Mexico City 04510, Mexico.
| | - Antonio Nieto-Camacho
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior, Ciudad Universitaria, Mexico City 04510, Mexico.
| | - Teresa Ramírez-Apan
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior, Ciudad Universitaria, Mexico City 04510, Mexico.
| | - Pedro Joseph-Nathan
- Departamento de Química, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, Mexico City 07000, Mexico.
| | - Leovigildo Quijano
- Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Circuito Exterior, Ciudad Universitaria, Mexico City 04510, Mexico.
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Wiemann J, Loesche A, Csuk R. Novel dehydroabietylamine derivatives as potent inhibitors of acetylcholinesterase. Bioorg Chem 2017; 74:145-157. [PMID: 28797788 DOI: 10.1016/j.bioorg.2017.07.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/19/2017] [Accepted: 07/25/2017] [Indexed: 11/24/2022]
Abstract
Nowadays, the inhibition of acetylcholinesterase is one of the main pharmacological strategies for the treatment of Alzheimer's disease. Therefore, a set of thirty-four derivatives of the diterpenoid dehydroabietylamine has been synthesized and screened in colorimetric Ellman's assays to determine their ability to inhibit the enzymes acetylcholinesterase (AChE, from electric eel) and butyrylcholinesterase (BChE, from equine serum). A systematic variation of the substitution of dehydroabietylamides enabled an approach to analogs showing a remarkable inhibition potency for AChE. Particularly N-benzoyldehydroabietylamines 11, 12 and 13 were excellent inhibitors for AChE, showing inhibition rates comparable to standard galantamine hydrobromide.
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Affiliation(s)
- Jana Wiemann
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - Anne Loesche
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany.
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Hadavand Mirzaei H, Firuzi O, Schneider B, Baldwin IT, Jassbi AR. Cytotoxic diterpenoids from the roots of Salvia lachnocalyx. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2017. [DOI: 10.1016/j.bjp.2017.01.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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18
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Topical Anti-inflammatory Activity of New Hybrid Molecules of Terpenes and Synthetic Drugs. Molecules 2015; 20:11219-35. [PMID: 26096431 PMCID: PMC6272242 DOI: 10.3390/molecules200611219] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 05/28/2015] [Accepted: 06/11/2015] [Indexed: 02/01/2023] Open
Abstract
The aim of the study was to assess changes in the activity of anti-inflammatory terpenes from Chilean medicinal plants after the formation of derivatives incorporating synthetic anti-inflammatory agents. Ten new hybrid molecules were synthesized combining terpenes (ferruginol (1), imbricatolic acid (2) and oleanolic acid (3)) with ibuprofen (4) or naproxen (5). The topical anti-inflammatory activity of the compounds was assessed in mice by the arachidonic acid (AA) and 12-O-tetradecanoyl phorbol 13-acetate (TPA) induced ear edema assays. Basal cytotoxicity was determined towards human lung fibroblasts, gastric epithelial cells and hepatocytes. At 1.4 µmol/mouse, a strong anti-inflammatory effect in the TPA assay was observed for oleanoyl ibuprofenate 12 (79.9%) and oleanoyl ibuprofenate methyl ester 15 (80.0%). In the AA assay, the best activity was observed for 12 at 3.2 µmol/mouse, with 56.8% reduction of inflammation, in the same range as nimesulide (48.9%). All the terpenyl-synthetic anti-inflammatory hybrids showed better effects in the TPA assay, with best activity for 6, 12 and 15. The cytotoxicity of the compounds 8 and 10 with a free COOH, was higher than that of 2. The derivatives from 3 were less toxic than the triterpene. Several of the new compounds presented better anti-inflammatory effect and lower cytotoxicity than the parent terpenes.
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19
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González MA. Aromatic abietane diterpenoids: their biological activity and synthesis. Nat Prod Rep 2015; 32:684-704. [DOI: 10.1039/c4np00110a] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this study, the biological properties of abietane-type diterpenoids with an aromatic C ring are reviewed. The review contains about 160 references.
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González MA. Synthetic derivatives of aromatic abietane diterpenoids and their biological activities. Eur J Med Chem 2014; 87:834-42. [PMID: 25440884 DOI: 10.1016/j.ejmech.2014.10.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/06/2014] [Accepted: 10/09/2014] [Indexed: 11/28/2022]
Abstract
Naturally occurring aromatic abietane diterpenoids (dehydroabietanes) exhibit a wide range of biological activities. A number of synthetic studies aimed at modifying the abietane skeleton in order to obtain new potential chemotherapeutic agents have been reported. In this study, the biological activities of synthetic derivatives of aromatic abietane diterpenoids are reviewed.
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Affiliation(s)
- Miguel A González
- Departamento de Química Orgánica, Universidad de Valencia, E-46100 Burjassot, Valencia, Spain.
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González MA, Clark J, Connelly M, Rivas F. Antimalarial activity of abietane ferruginol analogues possessing a phthalimide group. Bioorg Med Chem Lett 2014; 24:5234-7. [PMID: 25316317 DOI: 10.1016/j.bmcl.2014.09.061] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 09/19/2014] [Accepted: 09/22/2014] [Indexed: 12/25/2022]
Abstract
The abietane-type diterpenoid (+)-ferruginol, a bioactive compound isolated from New Zealand's Miro tree (Podocarpus ferruginea), displays relevant pharmacological properties, including antimicrobial, cardioprotective, anti-oxidative, anti-plasmodial, leishmanicidal, anti-ulcerogenic, anti-inflammatory and anticancer. Herein, we demonstrate that ferruginol (1) and some phthalimide containing analogues 2-12 have potential antimalarial activity. The compounds were evaluated against malaria strains 3D7 and K1, and cytotoxicity was measured against a mammalian cell line panel. A promising lead, compound 3, showed potent activity with an EC50 = 86 nM (3D7 strain), 201 nM (K1 strain) and low cytotoxicity in mammalian cells (SI>290). Some structure-activity relationships have been identified for the antimalarial activity in these abietane analogues.
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Affiliation(s)
- Miguel A González
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Valencia, Spain.
| | - Julie Clark
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Michele Connelly
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Fatima Rivas
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
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