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Liu S, Zhang C, Han Z, Huang H, Sun J. Organocatalytic enantio- and diastereoselective assembly of cyclopropane-incorporated polycyclic molecules via isobenzopyrylium ions. Chem Sci 2024; 15:d4sc03746d. [PMID: 39246368 PMCID: PMC11378009 DOI: 10.1039/d4sc03746d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Accepted: 08/15/2024] [Indexed: 09/10/2024] Open
Abstract
A highly enantio- and diastereoselective organocatalytic formation of cyclopropanes embedded in a complex bridged polycyclic architecture is disclosed. In the presence of a chiral phosphoric acid catalyst, this reaction generates four new stereogenic centers and three new C-C bonds efficiently from isochromene acetals and vinylboronic acids under mild conditions. Different from conventional asymmetric cyclopropanation strategies, this process does not involve carbenes or carbenoids. The complex products can serve as precursors to useful homoenolate equivalents. Mechanistically, DFT studies provided insights into the key transition states of the enantiodetermining [4 + 2] cycloaddition, in which the enantioselectivity is induced by the chiral phosphate counter anion of the isobenzopyrylium intermediate.
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Affiliation(s)
- Shuxuan Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| | - Chaoshen Zhang
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Jianwei Sun
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
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2
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Zhang J, Xu W, Xu MH. Low Coordination State Rh I -Complex as High Performance Catalyst for Asymmetric Intramolecular Cyclopropanation: Construction of penta-Substituted Cyclopropanes. Angew Chem Int Ed Engl 2023; 62:e202216799. [PMID: 36602264 DOI: 10.1002/anie.202216799] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/06/2023]
Abstract
A simple, broad-scope rhodium(I)/chiral diene catalytic system for challenging asymmetric intramolecular cyclopropanation of various tri-substituted allylic diazoacetates was successfully developed. The low coordination state RhI -complex exhibits an extraordinarily high degree of tolerance to the variation in the extent of substitution of the allyl double bond, thus allowing the efficient construction of a wide range of penta-substituted, fused-ring cyclopropanes bearing three contiguous stereogenic centers, including two quaternary carbon stereocenters, in a highly enantioselective manner with ease at catalyst loading as low as 0.1 mol %. The stereoinduction mode of this RhI -carbene-directed asymmetric intramolecular cyclopropanation was investigated by DFT calculations, indicating that π-π stacking interactions between the aromatic rings of chiral diene ligand and diazo substrate play a key role in the control of the reaction enantioselectivity.
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Affiliation(s)
- Junyou Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Weici Xu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ming-Hua Xu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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3
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Chacón-Morales PA. Unprecedented diterpene skeletons isolated from vascular plants in the last twenty years (2001-2021). PHYTOCHEMISTRY 2022; 204:113425. [PMID: 36096268 DOI: 10.1016/j.phytochem.2022.113425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Every year there are hundreds of reports about the isolation of undescribed terpenoids based on novel functionalizations of known carbocyclic skeletons series. However, on some occasions the compounds obtained have a carbocyclic skeleton that does not correspond with the series established, in these peculiar opportunities, in addition to finding an undescribed natural product, is obtained an unprecedented carbocyclic skeleton, whose biogenesis must necessarily involve other additional steps that explain its formation. This review accounts for the reports of seventy-nine unprecedented diterpene skeletons (corresponding to one-hundred-three undescribed diterpenoids) isolated from vascular plants in the last two decades. According to the genus, Euphorbia and Salvia are the most prolific in reports of unprecedented diterpene skeletons with a total of twenty, and nine skeletons, respectively. If the findings are expressed in terms of the family, Euphorbiaceae and Lamiaceae have the highest number of reports of undescribed diterpene skeletons, with twenty-seven and twenty-two, respectively. Finally, fifty-three skeletons are derived from higher diterpenoids (2-12, 68, 69, 86, 104-109, 158-161, 186, 189, 222, 250-255, 285-298, 403-404, 415, 416, and 436), twenty are derived from lower diterpenoids (135, 136, 192-194, 225-229, 363-370, 397, and 425), and six (96, 97, 147, 148, 205, and 206) are derived from skeletons whose biogenesis has not yet been established, or at least, cannot be formally included within the groups mentioned above. This article comprehensively highlights the hypothetical biosynthetic pathway for each of the one-hundred-three undescribed compounds with unprecedented diterpene skeletons and summarizes their most significant biological activities.
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Affiliation(s)
- Pablo A Chacón-Morales
- Natural Products Laboratory, Department of Chemistry, Faculty of Science, University of Los Andes, Mérida, 5101, Venezuela.
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4
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Ortiz-Mendoza N, Aguirre-Hernández E, Fragoso-Martínez I, González-Trujano ME, Basurto-Peña FA, Martínez-Gordillo MJ. A Review on the Ethnopharmacology and Phytochemistry of the Neotropical Sages ( Salvia Subgenus Calosphace; Lamiaceae) Emphasizing Mexican Species. Front Pharmacol 2022; 13:867892. [PMID: 35517814 PMCID: PMC9061990 DOI: 10.3389/fphar.2022.867892] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/28/2022] [Indexed: 11/13/2022] Open
Abstract
Salvia is the most diverse genus within the mint family (Lamiaceae), many of its species are well-known due to their medicinal and culinary uses. Most of the ethnopharmacological and phytochemical studies on Salvia are centred on species from the European and Asian clades. However, studies about the most diverse clade, the Neotropical sages (Salvia subgenus Calosphace; 587 spp.), are relatively scarce. This review aims to compile the information on the traditional medicinal uses, pharmacological and phytochemistry properties of the Neotropical sages. To do so, we carried out a comprehensive review of the articles available in different online databases published from the past to 2022 (i.e., PubMed, Scopus, and Web of Science, among others) and summarized the information in tables. To uncover phylogenetic patterns in the distribution of four different groups of metabolites (mono-, sesqui-, di-, and triterpenes), we generated presence-absence matrices and plotted the tip states over a dated phylogeny of Salvia. We found several studies involving Mexican species of Salvia, but only a few about taxa from other diversity centres. The main traditional uses of the Mexican species of Calosphace are medicinal and ceremonial. In traditional medicine 56 species are used to treat diseases from 17 categories according to the WHO, plus cultural-bound syndromes. Pharmacological studies reveal a wide range of biological properties (e.g., antinociceptive, anti-inflammatory, anxiolytic, cytotoxic, and antidiabetic, etc.) found in extracts and isolated compounds of 38 Neotropical sages. From extracts of these species, at least 109 compounds have been isolated, identified and evaluated pharmacologically; 73 of these compounds are clerodanes, 21 abietanes, six flavonoids, five sesquiterpenoids, and four triterpenoids. The most characteristic metabolites found in the Neotropical sages are the diterpenes, particularly clerodanes (e.g., Amarisolide A, Tilifodiolide), that are found almost exclusively in this group. The Neotropical sages are a promising resource in the production of herbal medication, but studies that corroborate the properties that have been attributed to them in traditional medicine are scarce. Research of these metabolites guided by the phylogenies is recommended, since closely related species tend to share the presence of similar compounds and thus similar medicinal properties.
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Affiliation(s)
- Nancy Ortiz-Mendoza
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Eva Aguirre-Hernández
- Laboratorio de Productos Naturales, Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - María Eva González-Trujano
- Laboratorio de Neurofarmacología de Productos Naturales, Dirección de Investigaciones en Neurociencias del Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Francisco A. Basurto-Peña
- Jardin Botánico, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, Mexico
| | - Martha J. Martínez-Gordillo
- Departamento de Biología Comparada, Herbario de la Facultad de Ciencias, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
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6
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Heravi MM, Momeni T, Zadsirjan V, Mohammadi L. Application of The Dess-Martin Oxidation in Total Synthesis of Natural Products. Curr Org Synth 2020; 18:125-196. [PMID: 32940184 DOI: 10.2174/1570179417666200917102634] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/07/2020] [Accepted: 08/18/2020] [Indexed: 11/22/2022]
Abstract
Dess-Martin periodinane (DMP), a commercially available chemical, is frequently utilized as a mild oxidative agent for the selective oxidation of primary and secondary alcohols to their corresponding aldehydes and ketones, respectively. DMP shows several merits over other common oxidative agents such as chromiumand DMSO-based oxidants; thus, it is habitually employed in the total synthesis of natural products. In this review, we try to underscore the applications of DMP as an effective oxidant in an appropriate step (steps) in the multi-step total synthesis of natural products.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
| | - Tayebe Momeni
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
| | - Leila Mohammadi
- Department of Chemistry, School of Science, Alzahra University, POBox 1993891176, Vanak, Tehran, Iran
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7
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Puri S. Oxygen as a Heteroatom in Propargylic Alcohols: Reactivity, Selectivity, and Applications. ChemistrySelect 2020. [DOI: 10.1002/slct.202002141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Surendra Puri
- Department of ChemistryHemvati Nandan Bahuguna Garhwal University (A Central University) Srinagar (Garhwal) Uttarakhand 246174 India
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8
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Aoyagi Y, Hitotsuyanagi Y, Nakazato Y, Yamazaki A, Kondo H, Ninomiya A, Tokuda M, Fukaya H, Yano R, Takeya K. Five New Highly Oxidized Neoclerodane Diterpenes, Salvileucalins E-I from Salvia leucantha. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Ma K, Martin BS, Yin X, Dai M. Natural product syntheses via carbonylative cyclizations. Nat Prod Rep 2019; 36:174-219. [PMID: 29923586 DOI: 10.1039/c8np00033f] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review summarizes the application of various transition metal-catalyzed/mediated carbonylative cyclization reactions in natural product total synthesis.
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Affiliation(s)
- Kaiqing Ma
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Brandon S. Martin
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Xianglin Yin
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
| | - Mingji Dai
- Department of Chemistry
- Center for Cancer Research
- Institute for Drug Discovery
- Purdue University
- West Lafayette
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10
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Mizuta S, Makau JN, Kitagawa A, Kitamura K, Otaki H, Nishi K, Watanabe K. Synthesis of Trifluoromethyl-α,β-unsaturated Lactones and Pyrazolinones and Discovery of Influenza Virus Polymerase Inhibitors. ChemMedChem 2018; 13:2390-2399. [DOI: 10.1002/cmdc.201800511] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/02/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Satoshi Mizuta
- Graduate School of Biomedical Sciences; Nagasaki University; 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Juliann Nzembi Makau
- Department of Molecular Microbiology and Immunology; Graduate School of Biomedical Sciences; Nagasaki University; 1-12-4 Sakamoto Nagasaki 852-8523 Japan
| | - Ayako Kitagawa
- Graduate School of Biomedical Sciences; Nagasaki University; 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Kanami Kitamura
- Graduate School of Biomedical Sciences; Nagasaki University; 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Hiroki Otaki
- Graduate School of Biomedical Sciences; Nagasaki University; 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Kodai Nishi
- Department of Radioisotope Medicine, Atomic Bomb Disease Institute; Nagasaki University; 1-12-4 Sakamoto Nagasaki 852-8523 Japan
| | - Ken Watanabe
- Department of Molecular Microbiology and Immunology; Graduate School of Biomedical Sciences; Nagasaki University; 1-12-4 Sakamoto Nagasaki 852-8523 Japan
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11
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Sharifi-Rad M, Ozcelik B, Altın G, Daşkaya-Dikmen C, Martorell M, Ramírez-Alarcón K, Alarcón-Zapata P, Morais-Braga MFB, Carneiro JN, Alves Borges Leal AL, Coutinho HDM, Gyawali R, Tahergorabi R, Ibrahim SA, Sahrifi-Rad R, Sharopov F, Salehi B, del Mar Contreras M, Segura-Carretero A, Sen S, Acharya K, Sharifi-Rad J. Salvia spp. plants-from farm to food applications and phytopharmacotherapy. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.08.008] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Fan M, Chen XJ, Wu XD, Shao LD, Ji X, Zhao QS. Salvifarinin A, a neo-clerodane diterpenoid with a 6/5/7 tricyclic skeleton from Salvia farinacea. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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13
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Heravi MM, Mohammadkhani L. Recent applications of Stille reaction in total synthesis of natural products: An update. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.05.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Cytotoxic diterpene quinones from Salvia tebesana Bunge. Fitoterapia 2018; 128:97-101. [DOI: 10.1016/j.fitote.2018.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/06/2018] [Accepted: 05/12/2018] [Indexed: 01/04/2023]
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15
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Li LW, Qi YY, Liu SX, Wu XD, Zhao QS. Neo-clerodane and abietane diterpenoids with neurotrophic activities from the aerial parts of Salvia leucantha Cav. Fitoterapia 2018; 127:367-374. [DOI: 10.1016/j.fitote.2018.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/27/2018] [Accepted: 03/31/2018] [Indexed: 10/17/2022]
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16
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Ji K, Zhang L. Cyclopropanation of Benzene Rings by Oxidatively Generated α-Oxo Gold Carbene: One-Pot Access to Tetrahydropyranone-Fused Cycloheptatrienes from Propargyl Benzyl Ethers. Adv Synth Catal 2017; 360:647-651. [PMID: 31814809 DOI: 10.1002/adsc.201701322] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Cyclopropanations of benzene rings by oxidatively generated α-oxo gold carbenes are for the first time demonstrated in a Buchner reaction, in which readily available propargyl benzyl ethers are converted in one-pot to tetrahydropyranone-fused cycloheptatrienes via sequential oxidative gold catalysis and base-promoted isomerization. Additional examples of arene cyclopropanations without fragmentation of the cyclopropane ring are also realized.
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Affiliation(s)
- Kegong Ji
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 3 Taicheng Road, Yangling 712100, Shaanxi, China.,Department of Chemistry and Biochemistry, University of California, Santa Barbara, California (USA)
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California (USA)
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17
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New neo -clerodane diterpenoids with neurotrophic activity from the aerial parts of Salvia tiliifolia. Fitoterapia 2017; 123:44-50. [DOI: 10.1016/j.fitote.2017.09.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 09/14/2017] [Accepted: 09/19/2017] [Indexed: 11/24/2022]
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18
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Affiliation(s)
- Christian Ebner
- Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Erick M. Carreira
- Eidgenössische Technische Hochschule Zürich, Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
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19
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Dilmaç AM, Spuling E, de Meijere A, Bräse S. Propellane: von chemischen Kuriositäten zu “explosiven” Materialen und Naturstoffen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201603951] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Alicia M. Dilmaç
- Institut für Organische Chemie (IOC); Karlsruher Institut für Technologie (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Eduard Spuling
- Institut für Organische Chemie (IOC); Karlsruher Institut für Technologie (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Armin de Meijere
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Stefan Bräse
- Institut für Organische Chemie (IOC); Karlsruher Institut für Technologie (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
- Institut für Toxikologie und Genetik (ITG); Karlsruher Institut für Technologie (KIT); Eggenstein-Leopoldshafen Deutschland
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20
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Dilmaç AM, Spuling E, de Meijere A, Bräse S. Propellanes-From a Chemical Curiosity to "Explosive" Materials and Natural Products. Angew Chem Int Ed Engl 2017; 56:5684-5718. [PMID: 27905166 DOI: 10.1002/anie.201603951] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 10/26/2016] [Indexed: 12/19/2022]
Abstract
Propellanes are a unique class of compounds currently consisting of well over 10 000 representatives, all featuring two more or less inverted tetrahedral carbon atoms that are common to three bridging rings. The central single bond between the two bridgeheads is significantly weakened in the smaller entities, which leads to unusual reactivities of these structurally interesting propeller-like molecules. This Review highlights the synthesis of such propellanes and their occurrence in material sciences, natural products, and medicinal chemistry. The conversion of [1.1.1]propellane into bridgehead derivatives of bicyclo[1.1.1]pentane, including oligomers and polymers with bicyclo[1.1.1]penta-1,3-diyl repeat units, is also featured. A selection of natural products with larger propellane subunits are discussed in detail. Heteropropellanes and inorganic propellanes are also addressed. The historical background is touched in brief to show the pioneering work of David Ginsburg, Günther Snatzke, Kenneth B. Wiberg, Günter Szeimies, and others.
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Affiliation(s)
- Alicia M Dilmaç
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany
| | - Eduard Spuling
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany
| | - Armin de Meijere
- Institute of Organic and Biomolecular Chemistry, Georg-August Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131, Karlsruhe, Germany.,Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
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21
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Jiang YJ, Su J, Shi X, Wu XD, Chen XQ, He J, Shao LD, Li XN, Peng LY, Li RT, Zhao QS. neo -Clerodanes from the aerial parts of Salvia leucantha. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Fan YY, Gao XH, Yue JM. Attractive natural products with strained cyclopropane and/or cyclobutane ring systems. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0233-1] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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23
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Das D, Chakraborty TK. An overview of the recent synthetic studies toward penifulvins and other fenestranes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Izumi H, Nafie LA, Dukor RK. Three-Dimensional Chemical Structure Search Using the Conformational Code for Organic Molecules (CCOM) Program. Chirality 2016; 28:370-5. [DOI: 10.1002/chir.22596] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 02/25/2016] [Accepted: 02/25/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroshi Izumi
- National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba Ibaraki Japan
| | - Laurence A. Nafie
- Department of Chemistry; Syracuse University; Syracuse New York USA
- BioTools Inc.; Jupiter Florida USA
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25
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Jacobo-Herrera NJ, Jacobo-Herrera FE, Zentella-Dehesa A, Andrade-Cetto A, Heinrich M, Pérez-Plasencia C. Medicinal plants used in Mexican traditional medicine for the treatment of colorectal cancer. JOURNAL OF ETHNOPHARMACOLOGY 2016; 179:391-402. [PMID: 26721221 DOI: 10.1016/j.jep.2015.12.042] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/21/2015] [Accepted: 12/21/2015] [Indexed: 05/27/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cancer cases numbers are increasing worldwide positioning this disease as the second cause of mortality for both sexes. Medicinal plants have been used in the fight against cancer as the basis for drug discovery and nowadays more than 70% of anticancer drugs have a natural origin. Mexico is regarded for its cultural and biological diversity, which is reflected in the vast traditional knowledge of herbal remedies. In this review we examined herbal remedies employed in colorectal cancer treatment (CRC). AIM OF THE STUDY The goal of this work was to gather scientific reports of plants used in Mexican traditional medicine for CRC treatment. MATERIALS AND METHODS We performed a search on scientific literature databases using as keywords: "colon cancer", "gastric cancer", "cytotoxicity", studies "in vitro and in vivo", in combination with "Mexican medicinal plants" or "Mexican herbal remedies". The selection criteria of cytotoxic activity for extracts or pure compounds was based on the National Cancer Institute of USA recommendations of effective dose 50 (ED50) of ≤20μg/mL and ≤4μg/mL, respectively. RESULTS In this review we report 25 botanic families and 39 species of plants used for the treatment of colon cancer in Mexico with evidence in studies in vitro and in vivo. CONCLUSIONS Medicinal plants are still a great source of novel chemical structures with antineoplastic potential as it is proven in this work. The selection criteria and activity was narrowed for methodological purposes, nevertheless, drug discovery of natural origin continues to be a highly attractive R&D strategy.
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Affiliation(s)
- Nadia J Jacobo-Herrera
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", D.F. Mexico, Mexico.
| | - Frida E Jacobo-Herrera
- Depto. Ciencias Sociales y Humanidades, Unidad Cuajimalpa Universidad Autónoma Metropolitana, D.F. Mexico, Mexico.
| | - Alejandro Zentella-Dehesa
- Unidad de Bioquímica, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", D.F. Mexico, Mexico; Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, UNAM, D.F. Mexico, Mexico.
| | - Adolfo Andrade-Cetto
- Laboratorio de Etnofarmacología, Facultad de Ciencias, Universidad Nacional Autónoma de México, UNAM, D.F. Mexico, Mexico.
| | - Michael Heinrich
- Research Cluster Biodiversity and Medicines/Centre for Pharmacognosy and Phytotherapy, School of Pharmacy, UCL, London, UK.
| | - Carlos Pérez-Plasencia
- UBIMED, FES-Iztacala, Universidad Nacional Autónoma de México, UNAM, Tlalnepantla, Estado de México, Mexico; Laboratorio de Genomica, Instituto Nacional de Cancerología, D.F. Mexico, Mexico.
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26
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Mizuta S, Otaki H, Kitamura K, Nishi K, Watanabe K, Makau JN, Hashimoto R, Usui T, Chiba K. 3,3-Dibromo-2-trifluoromethyl acrylic acid ethyl ester: a versatile platform for the stereoselective preparation of functionalized-α-trifluoromethyl α,β-unsaturated lactones and trifluoromethyl pyrazolinones. Org Chem Front 2016. [DOI: 10.1039/c6qo00360e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthetic routes to multi-functionalized-α-trifluoromethyl α,β-unsaturated lactones and trifluoromethyl pyrazolinones.
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Affiliation(s)
- Satoshi Mizuta
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki
- Japan
| | - Hiroki Otaki
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki
- Japan
| | - Kanami Kitamura
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki
- Japan
| | - Kodai Nishi
- Department of Radioisotope Medicine
- Atomic Bomb Disease institute
- Nagasaki University
- Nagasaki
- Japan
| | - Ken Watanabe
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki
- Japan
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27
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Kiran Kumar Y, Ranjith Kumar G, Sridhar Reddy M. Hg/Pt-catalyzed conversion of bromo alkynamines/alkynols to saturated and unsaturated γ-butyrolactams/lactones via intramolecular electrophilic cyclization. Org Biomol Chem 2015; 14:1252-60. [PMID: 26647118 DOI: 10.1039/c5ob02125a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Convenient and general Hg(ii)/Pt(iv) catalyzed syntheses of γ-butyrolactams and α,β-unsaturated γ-butyrolactones/lactams are described via intramolecular electrophilic cyclizations of bromoalkynes with tosylamino and hydroxyl tethers. The reaction features the use of wet solvents, the exclusion of any base and additive, mild conditions and practical yields. We also synthesised few chiral lactams through this pathway. Additionally, it is shown that the NHTs group distanced further from the homopropargylic position assists regioselective bromoalkyne hydration to yield useful α-bromoketones. Furthermore, Boc protected bromo homo propargyl amines undergo 6-endo-dig cyclization through Boc oxygen to give bromomethylene substituted oxazinones.
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Affiliation(s)
- Yalla Kiran Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
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28
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29
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Bautista E, Fragoso-Serrano M, Toscano RA, García-Peña MDR, Ortega A. Teotihuacanin, a Diterpene with an Unusual Spiro-10/6 System from Salvia amarissima with Potent Modulatory Activity of Multidrug Resistance in Cancer Cells. Org Lett 2015; 17:3280-2. [PMID: 26086893 DOI: 10.1021/acs.orglett.5b01320] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Teotihuacanin (1), an unusual rearranged clerodane diterpene with a new carbon skeleton containing a spiro-10/6 bicyclic system, was isolated from the leaves and flowers of Salvia amarissima. Its structure was determined through spectroscopic analyses. Its absolute configuration was established by single-crystal X-ray diffraction. Compound 1 showed potent modulatory activity of multidrug resistance in vinblastine-resistant MCF-7 cancer cell line (reversal fold, RFMCF-7/Vin+ > 10703) at 25 μg/mL.
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Affiliation(s)
- Elihú Bautista
- †Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, ‡Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, and §Herbario Nacional de México, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
| | - Mabel Fragoso-Serrano
- †Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, ‡Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, and §Herbario Nacional de México, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
| | - Rubén A Toscano
- †Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, ‡Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, and §Herbario Nacional de México, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
| | - María del Rosario García-Peña
- †Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, ‡Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, and §Herbario Nacional de México, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
| | - Alfredo Ortega
- †Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica, ‡Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, and §Herbario Nacional de México, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
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30
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Batista Jr. JM, Blanch EW, Bolzani VDS. Recent advances in the use of vibrational chiroptical spectroscopic methods for stereochemical characterization of natural products. Nat Prod Rep 2015; 32:1280-302. [DOI: 10.1039/c5np00027k] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A comprehensive look into application of vibrational optical activity methods for conformational and configurational assignments in natural product molecules over the last 15 years is provided.
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Affiliation(s)
- João M. Batista Jr.
- Department of Chemistry
- Federal University of São Carlos – UFSCar
- São Carlos
- Brazil
| | - Ewan W. Blanch
- School of Applied Sciences
- RMIT University
- Melbourne
- Australia
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31
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Long R, Huang J, Gong J, Yang Z. Direct construction of vicinal all-carbon quaternary stereocenters in natural product synthesis. Nat Prod Rep 2015; 32:1584-601. [DOI: 10.1039/c5np00046g] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Molecules containing vicinal all-carbon quaternary stereocenters are found in many secondary metabolites, and they exhibit a variety of biological and pharmacological activities.
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Affiliation(s)
- Rong Long
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Jun Huang
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Jianxian Gong
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Zhen Yang
- Laboratory of Chemical Genomics
- School of Chemical Biology and Biotechnology
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
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32
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Fu C, Zhang Y, Xuan J, Zhu C, Wang B, Ding H. Diastereoselective Total Synthesis of Salvileucalin C. Org Lett 2014; 16:3376-9. [DOI: 10.1021/ol501423t] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chenchen Fu
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Yuanbao Zhang
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Jun Xuan
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Chenlong Zhu
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Bingnan Wang
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
| | - Hanfeng Ding
- Department
of Chemistry, Zhejiang University, 148 Tianmushan Road, Hangzhou 310028, P. R. China
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33
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Bautista E, Toscano RA, Ortega A. 5,10-seco-neo-clerodanes and neo-clerodanes from Salvia microphylla. JOURNAL OF NATURAL PRODUCTS 2014; 77:1088-92. [PMID: 24625121 DOI: 10.1021/np4009893] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Two new 5,10-seco-neo-clerodanes, salvimicrophyllins A and B (1 and 2), and two new neo-clerodanes, salvimicrophyllins C and D (3 and 4), were isolated from the leaves and flowers of Salvia microphylla. The structures of these compounds were elucidated mainly by analysis of their NMR spectroscopic and mass spectrometric data. The relative configurations of the salvimicrophyllins were determined by analysis of NOESY spectra and ECD curves, and the relative configuration of compound 2 was confirmed by single-crystal X-ray diffraction crystallography.
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MESH Headings
- Animals
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Crystallography, X-Ray
- Diterpenes, Clerodane/chemistry
- Diterpenes, Clerodane/isolation & purification
- Diterpenes, Clerodane/pharmacology
- Drug Screening Assays, Antitumor
- Edema/chemically induced
- Edema/drug therapy
- Flowers/chemistry
- Humans
- K562 Cells
- Mexico
- Mice
- Models, Biological
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Plant Leaves/chemistry
- Salvia/chemistry
- Tetradecanoylphorbol Acetate/pharmacology
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Affiliation(s)
- Elihú Bautista
- Instituto de Química, Universidad Nacional Autónoma de México , Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México City, México
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34
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Taber DF, Paquette CM. Synthesis of the Pentacylic Core of (+)-Salvileucalin B. J Org Chem 2014; 79:3410-3. [DOI: 10.1021/jo500164x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Douglass F. Taber
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Craig M. Paquette
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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35
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Zhu S, Guo Z, Huang Z, Jiang H. Bioinspired Intramolecular Diels-Alder Reaction: A Rapid Access to the Highly-Strained Cyclopropane-Fused Polycyclic Skeleton. Chemistry 2014; 20:2425-30. [DOI: 10.1002/chem.201304839] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Indexed: 11/09/2022]
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36
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Krüger S, Gaich T. Recent applications of the divinylcyclopropane-cycloheptadiene rearrangement in organic synthesis. Beilstein J Org Chem 2014; 10:163-93. [PMID: 24605138 PMCID: PMC3943923 DOI: 10.3762/bjoc.10.14] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 11/11/2013] [Indexed: 12/03/2022] Open
Abstract
This review summarizes the application of the divinylcyclopropane–cycloheptadiene rearrangement in synthetic organic chemistry. A brief overview of the new mechanistic insights concerning the title reaction is provided as well as a condensed account on the biological relevance of the topic. Heteroatom variants of this rearrangement are covered briefly.
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Affiliation(s)
- Sebastian Krüger
- Institut für Organische Chemie, Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Tanja Gaich
- Institut für Organische Chemie, Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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37
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Aoyagi Y, Fujiwara K, Yamazaki A, Sugawara N, Yano R, Fukaya H, Hitotsuyanagi Y, Takeya K, Ishiyama A, Iwatsuki M, Otoguro K, Yamada H, Ōmura S. Semisynthesis of salviandulin E analogues and their antitrypanosomal activity. Bioorg Med Chem Lett 2014; 24:442-6. [DOI: 10.1016/j.bmcl.2013.12.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/09/2013] [Accepted: 12/13/2013] [Indexed: 11/29/2022]
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38
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Bautista E, Toscano A, Calzada F, Díaz E, Yépez-Mulia L, Ortega A. Hydroxyclerodanes from Salvia shannoni. JOURNAL OF NATURAL PRODUCTS 2013; 76:1970-1975. [PMID: 24099364 DOI: 10.1021/np400606g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Six new hydroxyclerodanes (1-6), named sepulturins A-F, and four known diterpenes were isolated from the leaves of Salvia shannoni. The structures of these compounds were established by extensive analysis of their NMR and MS spectroscopic data. The relative configurations of compounds 1 and 2 were determined by NOESY experiments and were confirmed by single-crystal X-ray diffraction studies. All of the isolated diterpenes possess tertiary OH groups. The structure of infuscatin (7), a clerodane previously isolated from S. infuscata, was revised. Cytotoxic, antiprotozoal, and anti-inflammatory activities of these compounds were evaluated.
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Affiliation(s)
- Elihú Bautista
- Instituto de Química, Universidad Nacional Autónoma de México , Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México City, Mexico
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39
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40
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Egi M, Ota Y, Nishimura Y, Shimizu K, Azechi K, Akai S. Efficient Intramolecular Cyclizations of Phenoxyethynyl Diols into Multisubstituted α,β-Unsaturated Lactones. Org Lett 2013; 15:4150-3. [DOI: 10.1021/ol401824v] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Masahiro Egi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Yuya Ota
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Yuka Nishimura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Kaori Shimizu
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Kenji Azechi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
| | - Shuji Akai
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, Shizuoka 422-8526, Japan
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41
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Bautista E, Toscano RA, Ortega A. Microphyllandiolide, a New Diterpene with an Unprecedented Skeleton from Salvia microphylla. Org Lett 2013; 15:3210-3. [DOI: 10.1021/ol401022c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elihú Bautista
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, México D. F. 04510, México
| | - Rubén Alfredo Toscano
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, México D. F. 04510, México
| | - Alfredo Ortega
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, México D. F. 04510, México
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42
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Nani RR, Reisman SE. α-Diazo-β-ketonitriles: Uniquely Reactive Substrates for Arene and Alkene Cyclopropanation. J Am Chem Soc 2013; 135:7304-11. [DOI: 10.1021/ja401610p] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Roger R. Nani
- The Warren and Katharine Schlinger
Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
| | - Sarah E. Reisman
- The Warren and Katharine Schlinger
Laboratory for Chemistry
and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California
91125, United States
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43
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Heinrich N, Willis AC, Cade IA, Ho J, Coote ML, Banwell MG. Reversible Cyclopropane Ring-Cleavage Reactions within Etheno-Bridged [4.3.1]Propelladiene Frameworks Leading to Aza- and Oxa-[5.6.5.6]fenestratetraenes. Chemistry 2012; 18:13585-8. [DOI: 10.1002/chem.201202903] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Indexed: 11/09/2022]
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44
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Wu YB, Ni ZY, Shi QW, Dong M, Kiyota H, Gu YC, Cong B. Constituents from Salvia Species and Their Biological Activities. Chem Rev 2012; 112:5967-6026. [DOI: 10.1021/cr200058f] [Citation(s) in RCA: 277] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yi-Bing Wu
- School of
Pharmaceutical Sciences,
Hebei Key Laboratory of Forensic Medicine, Hebei Medical University,
Shijiazhuang, Hebei Province 050017, China
| | - Zhi-Yu Ni
- School of
Pharmaceutical Sciences,
Hebei Key Laboratory of Forensic Medicine, Hebei Medical University,
Shijiazhuang, Hebei Province 050017, China
| | - Qing-Wen Shi
- School of
Pharmaceutical Sciences,
Hebei Key Laboratory of Forensic Medicine, Hebei Medical University,
Shijiazhuang, Hebei Province 050017, China
| | - Mei Dong
- Department of Forensic Medicine,
Hebei Medical University, Hebei Key Laboratory of Forensic Medicine,
Shijiazhuang, Hebei Province 050017, China
| | - Hiromasa Kiyota
- Department of Bioscience and Biotechnology
for Future Bioindustry, Graduate School of Agricultural Science, Tohoku
University, 1-1 Tsutsumidori-Amamiya, Aoba-ku, Sendai 981-8555, Japan
| | - Yu-Cheng Gu
- School of
Pharmaceutical Sciences,
Hebei Key Laboratory of Forensic Medicine, Hebei Medical University,
Shijiazhuang, Hebei Province 050017, China
- Syngenta Jealott’s Hill
International Research Centre, Berkshire RG42 6EY, United Kingdom
| | - Bin Cong
- Department of Forensic Medicine,
Hebei Medical University, Hebei Key Laboratory of Forensic Medicine,
Shijiazhuang, Hebei Province 050017, China
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45
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Li S, Ma S. CO2-activation for γ-butyrolactones and its application in the total synthesis of (±)-heteroplexisolide E. Chem Asian J 2012; 7:2411-8. [PMID: 22807405 DOI: 10.1002/asia.201200467] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Indexed: 11/06/2022]
Abstract
An efficient nickel(0)-catalyzed highly regio- and stereoselective hydrocarboxylation of homopropargylic alcohols with ZnEt(2) in the presence of CO(2) (1 atm, balloon) to synthesize α-alkylidene-γ-butyrolactones is described. The catalyst is highly active and can be applied for the synthesis of (optically active) mono- or bicyclic α-alkylidene-γ-butyrolactones with excellent regio- and stereoselectivity and good functional group tolerance. The potential of the reaction has been demonstrated in the first synthesis of (±)-heteroplexisolide E.
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Affiliation(s)
- Suhua Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, P. R. China
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46
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Bautista E, Maldonado E, Ortega A. Neo-clerodane diterpenes from Salvia herbacea. JOURNAL OF NATURAL PRODUCTS 2012; 75:951-958. [PMID: 22578169 DOI: 10.1021/np3001464] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Chemical investigation of the aerial parts of Salvia herbacea led to the isolation of eight new neo-clerodane diterpenes (1-8), named tehuanins A-H, and three known compounds. The structures of these compounds were determined by analysis of their spectroscopic data. Three of the new diterpenes possess a 1,8-epoxy group (1-3). This unusual structural feature was confirmed by X-ray diffraction of 1. The structure of the previously isolated 1α,10α-epoxysalviarin was revised. The absolute configuration of 6 was established by X-ray diffraction analysis of its bromo derivative 6a. Cytotoxic and anti-inflammatory activities of these diterpenes were examined. None of the compounds were considered to be cytotoxic; however, compound 7 exhibited anti-inflammatory activity comparable to that of indomethacin.
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Affiliation(s)
- Elihú Bautista
- Instituto de Química, Universidad Nacional Autónoma de México , Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, D. F., México
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Heinrich N, Banwell MG, Willis AC, Cade IA, Capon RJ, Huang XC. Probing for the Pharmacophore of the Cytotoxic Neoclerodane Salvileucalin B. Aust J Chem 2012. [DOI: 10.1071/ch12358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The novel [4.3.1]propelladiene 2, which embodies the key structural elements of the pentacyclic core of the cytotoxic neoclerodane salvileucalin B (1), has been prepared using a rhodium-catalysed intramolecular Büchner reaction as the key step. Compound 2 and the readily obtained derivatives 12–17 all proved to be essentially inactive when tested against a panel of four human cancer cell lines. Furthermore, not one of these compounds was a P-gp inhibitor.
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Farimani MM, Taheri S, Ebrahimi SN, Bahadori MB, Khavasi HR, Zimmermann S, Brun R, Hamburger M. Hydrangenone, a New Isoprenoid with an Unprecedented Skeleton from Salvia hydrangea. Org Lett 2011; 14:166-9. [DOI: 10.1021/ol202953b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Moridi Farimani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
| | - Salman Taheri
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
| | - Samad N. Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
| | - M. Babak Bahadori
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
| | - Hamid R. Khavasi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
| | - Stefanie Zimmermann
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
| | - Reto Brun
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
| | - Matthias Hamburger
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran, Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland, Department of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran, Iran, and Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
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Yu DF, Wang Y, Xu PF. Diastereo- and Enantioselective Synthesis of a Novel Tetracyclic Ring System via an Organocatalytic One-Pot Reaction. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100332] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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