1
|
Chin EJ, Ching KC, Tan ZY, Wibowo M, Leong CY, Yang LK, Ng VWP, Seow DCS, Kanagasundaram Y, Ng SB. Natural Products from Singapore Soil-Derived Streptomycetaceae Family and Evaluation of Their Biological Activities. Molecules 2023; 28:5832. [PMID: 37570802 PMCID: PMC10421265 DOI: 10.3390/molecules28155832] [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: 06/28/2023] [Revised: 07/26/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Natural products have long been used as a source of antimicrobial agents against various microorganisms. Actinobacteria are a group of bacteria best known to produce a wide variety of bioactive secondary metabolites, including many antimicrobial agents. In this study, four actinobacterial strains found in Singapore terrestrial soil were investigated as potential sources of new antimicrobial compounds. Large-scale cultivation, chemical, and biological investigation led to the isolation of a previously undescribed tetronomycin A (1) that demonstrated inhibitory activities against both Gram-positive bacteria Staphylococcus aureus (SA) and methicillin-resistant Staphylococcus aureus (MRSA) (i.e., MIC90 of 2-4 μM and MBC90 of 9-12 μM), and several known antimicrobial compounds, namely nonactin, monactin, dinactin, 4E-deacetylchromomycin A3, chromomycin A2, soyasaponin II, lysolipin I, tetronomycin, and naphthomevalin. Tetronomycin showed a two- to six-fold increase in antibacterial activity (i.e., MIC90 and MBC90 of 1-2 μM) as compared to tetronomycin A (1), indicating the presence of an oxy-methyl group at the C-27 position is important for antibacterial activity.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Yoganathan Kanagasundaram
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore; (E.-J.C.); (K.-C.C.); (Z.Y.T.); (M.W.); (C.-Y.L.); (L.-K.Y.); (V.W.P.N.); (D.C.S.S.)
| | - Siew-Bee Ng
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore 138673, Singapore; (E.-J.C.); (K.-C.C.); (Z.Y.T.); (M.W.); (C.-Y.L.); (L.-K.Y.); (V.W.P.N.); (D.C.S.S.)
| |
Collapse
|
2
|
Wibowo M, Ding L. Chemistry and Biology of Natural Azoxy Compounds. JOURNAL OF NATURAL PRODUCTS 2020; 83:3482-3491. [PMID: 33197183 DOI: 10.1021/acs.jnatprod.0c00725] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Azoxy compounds belong to a small yet intriguing group of natural products sharing a common functional group with the general structure RN═N+(O-)R. Their intriguing chemical structures, diverse biological activities, and important industrial applications have received attention from researchers in natural product chemistry, total synthesis, and biosynthesis. This review presents current updates about the structural diversity of natural azoxy compounds isolated from different organisms and highlights the enzymes and biological logic involved in their construction. We assume that the identification of key enzymes will provide efficient tools in biocatalysis to generate new azoxy compounds, while genome mining may result in novel natural azoxy compounds of medical and industrial interest.
Collapse
Affiliation(s)
- Mario Wibowo
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, 2800 Kgs. Lyngby, Denmark
| | - Ling Ding
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, 2800 Kgs. Lyngby, Denmark
| |
Collapse
|
3
|
Engel KH. Chirality: An Important Phenomenon Regarding Biosynthesis, Perception, and Authenticity of Flavor Compounds. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10265-10274. [PMID: 32223150 DOI: 10.1021/acs.jafc.0c01512] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chirality plays an important role in flavor research. This will be outlined using selected examples from the key areas analysis, authenticity assessment, biogenesis, and odor perception. Developments of analytical techniques, in particular the use of chiral stationary phases in capillary gas chromatography, enabled the determination of naturally occurring configurations of chiral volatiles at trace levels. Thus, knowledge of pathways and enzymes involved in the biogenesis of chiral substances was acquired, and enantioselective analysis has become a prominent tool in the authenticity assessment of flavorings. Increasing information is also available on structure-odor relationships of chiral flavor compounds and the influence of their configurations on odor thresholds and odor properties. A substantial extension of these data sets and a further understanding of the role of chirality in the perception of aroma compounds is expected from studies on the enantioselectivity of odorant receptor systems. Developments in these areas will be put into a historical perspective, recent progress will be emphasized, and data gaps will be described.
Collapse
Affiliation(s)
- Karl-Heinz Engel
- Lehrstuhl für Allgemeine Lebensmitteltechnologie, Technische Universität München, D-85354 Freising, Weihenstephan, Germany
| |
Collapse
|
4
|
Novel biotechnological glucosylation of high-impact aroma chemicals, 3(2H)- and 2(5H)-furanones. Sci Rep 2019; 9:10943. [PMID: 31358872 PMCID: PMC6662797 DOI: 10.1038/s41598-019-47514-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/18/2019] [Indexed: 11/23/2022] Open
Abstract
Glucosyltransferases are versatile biocatalysts to chemically modify small molecules and thus enhance their water solubility and structural stability. Although the genomes of all organisms harbor a multitude of glucosyltransferase genes, their functional characterization is hampered by the lack of high-throughput in-vivo systems to rapidly test the versatility of the encoded proteins. We have developed and applied a high-throughput whole cell biotransformation system to screen a plant glucosyltransferase library. As proof of principle, we identified 25, 24, 15, and 18 biocatalysts transferring D-glucose to sotolone, maple furanone, furaneol and homofuraneol, four highly appreciated flavor compounds, respectively. Although these 3(2H)- and 2(5H)-furanones have extremely low odor thresholds their glucosides were odorless. Upscaling of the biotechnological process yielded titers of 5.3 and 7.2 g/L for the new to nature β-D-glucopyranosides of sotolone and maple furanone, respectively. Consequently, plant glucosyltransferase show stunning catalytic activities, which enable the economical production of novel and unexplored chemicals with exciting new functionalities by whole-cell biotransformation.
Collapse
|
5
|
N. L. Batista A, dos Santos FM, Valverde AL, Batista JM. Stereochemistry of spongosoritins: beyond optical rotation. Org Biomol Chem 2019; 17:9772-9777. [DOI: 10.1039/c9ob02010a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combination of spectroscopic methods reveals the dependence of the chiroptical properties of spongosoritins on achiral structural features.
Collapse
Affiliation(s)
- Andrea N. L. Batista
- Department of Organic Chemistry
- Chemistry Institute
- Fluminense Federal University
- Niteroi RJ 24020-141
- Brazil
| | - Fernando M. dos Santos
- Department of Organic Chemistry
- Chemistry Institute
- Fluminense Federal University
- Niteroi RJ 24020-141
- Brazil
| | - Alessandra L. Valverde
- Department of Organic Chemistry
- Chemistry Institute
- Fluminense Federal University
- Niteroi RJ 24020-141
- Brazil
| | - Joao M. Batista
- Institute of Science and Technology
- Federal University of Sao Paulo
- Sao Jose dos Campos
- Brazil
| |
Collapse
|
6
|
Absolute configuration assignment to anticancer Amaryllidaceae alkaloid jonquailine. Fitoterapia 2018; 129:78-84. [DOI: 10.1016/j.fitote.2018.06.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/14/2018] [Accepted: 06/15/2018] [Indexed: 01/18/2023]
|
7
|
Ontiveros-Rodríguez JC, Burgueño-Tapia E, Porras-Ramírez J, Joseph-Nathan P, Zepeda LG. Configurational Study of an Aporphine Alkaloid from Annona purpurea. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Purpureine (1), norpurpureine (2), and 3-hydroxyglaucine (4) were isolated from the leaves of Annona purpurea. A vibrational circular dichroism study for the absolute configuration determination of 1 provides evidence for the mutually dependent atropisomerism, local chirality of the sole stereogenic center, and the geometry of the tetrahedral nitrogen atom in aporphine alkaloids. The observed change in the optical rotation sign between 2 and its hydrochloride 3 might explain why this compound has been reported as dextrorotatory and levorotatory from the same botanical source. Furthermore, 1H and 13C NMR spectra of 1, 2 and 4 were fully assigned for the first time.
Collapse
Affiliation(s)
- Julio C. Ontiveros-Rodríguez
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala, Col. Santo Tomas, Mexico City, 11340, Mexico
| | - Eleuterio Burgueño-Tapia
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala, Col. Santo Tomas, Mexico City, 11340, Mexico
| | - Javier Porras-Ramírez
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala, Col. Santo Tomas, Mexico City, 11340, 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
| | - L. Gerardo Zepeda
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala, Col. Santo Tomas, Mexico City, 11340, Mexico
| |
Collapse
|
8
|
N L Batista A, M Dos Santos F, Batista JM, Cass QB. Enantiomeric Mixtures in Natural Product Chemistry: Separation and Absolute Configuration Assignment. Molecules 2018; 23:molecules23020492. [PMID: 29473869 PMCID: PMC6017502 DOI: 10.3390/molecules23020492] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/23/2018] [Accepted: 02/21/2018] [Indexed: 01/13/2023] Open
Abstract
Chiral natural product molecules are generally assumed to be biosynthesized in an enantiomerically pure or enriched fashion. Nevertheless, a significant amount of racemates or enantiomerically enriched mixtures has been reported from natural sources. This number is estimated to be even larger since the enantiomeric purity of secondary metabolites is rarely checked in the natural product isolation pipeline. This latter fact may have drastic effects on the evaluation of the biological activity of chiral natural products. A second bottleneck is the determination of their absolute configurations. Despite the widespread use of optical rotation and electronic circular dichroism, most of the stereochemical assignments are based on empirical correlations with similar compounds reported in the literature. As an alternative, the combination of vibrational circular dichroism and quantum chemical calculations has emerged as a powerful and reliable tool for both conformational and configurational analysis of natural products, even for those lacking UV-Vis chromophores. In this review, we aim to provide the reader with a critical overview of the occurrence of enantiomeric mixtures of secondary metabolites in nature as well the best practices for their detection, enantioselective separation using liquid chromatography, and determination of absolute configuration by means of vibrational circular dichroism and density functional theory calculations.
Collapse
Affiliation(s)
- Andrea N L Batista
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
| | - Fernando M Dos Santos
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
| | - João M Batista
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
- Institute of Science and Technology, Federal University of São Paulo-UNIFESP, R. Talim 330, São José dos Campos, SP 12231-280, Brazil.
| | - Quezia B Cass
- Department of Chemistry, Federal University of São Carlos-UFSCar, Rod. Washington Luis s/n, km 235, São Carlos, SP 13565-905, Brazil.
| |
Collapse
|
9
|
Mazzeo G, Cimmino A, Masi M, Longhi G, Maddau L, Memo M, Evidente A, Abbate S. Importance and Difficulties in the Use of Chiroptical Methods to Assign the Absolute Configuration of Natural Products: The Case of Phytotoxic Pyrones and Furanones Produced by Diplodia corticola. JOURNAL OF NATURAL PRODUCTS 2017; 80:2406-2415. [PMID: 28901768 DOI: 10.1021/acs.jnatprod.7b00119] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
α-Pyrones and furanones are metabolites produced by Diplodia corticola, a pathogen of cork oak. Previously, the absolute configuration (AC) of diplopyrone was defined by chiroptical methods and Mosher's method. Using X-ray and chiroptical methods, the AC of sapinofuranone C was assigned, while that of the (4S,5S)-enantiomer of sapinofuranone B was established by enantioselective total synthesis. Diplofuranone A and diplobifuranylones A-C ACs are still unassigned. Here electronic and vibrational circular dichroism (ECD and VCD) and optical rotatory dispersion (ORD) spectra are reported and compared with density functional theory computations. The AC of the (4S,5S)-enantiomer of sapinofuranone B and sapinofuranone C is checked for completeness. The AC of diplobifuranylones A-C is assigned as (2S,2'S,5'S,6'S), (2S,2'R,5'S,6'R), and (2S,2'S,5'R,6'R), respectively, with the Mosher's method applied to define the absolute configuration of the carbinol stereogenic carbon. The AC assignment of sapinofuranones is problematic: while diplofuranone A is (4S,9R), sapinofuranones B and C are (4S,5S) according to ORD and VCD, but not to ECD. To eliminate these ambiguities, ECD and VCD spectra of a di-p-bromobenzoate derivative of sapinofuranone C are measured and calculated. For phytotoxicity studies, it is relevant that all six compounds share the S configuration for the stereogenic carbon atom of the lactone moiety.
Collapse
Affiliation(s)
- Giuseppe Mazzeo
- Dipartimento di Medicina Molecolare e Traslazionale, Università degli Studi di Brescia , Viale Europa 11, 25123 Brescia, Italy
| | - Alessio Cimmino
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo , Via Cintia 4, 80126 Napoli, Italy
| | - Marco Masi
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo , Via Cintia 4, 80126 Napoli, Italy
| | - Giovanna Longhi
- Dipartimento di Medicina Molecolare e Traslazionale, Università degli Studi di Brescia , Viale Europa 11, 25123 Brescia, Italy
| | - Lucia Maddau
- Dipartimento di Agraria, Sezione di Patologia Vegetale ed Entomologia, Università degli Studi di Sassari , Viale Italia 39, 07100 Sassari, Italy
| | - Maurizio Memo
- Dipartimento di Medicina Molecolare e Traslazionale, Università degli Studi di Brescia , Viale Europa 11, 25123 Brescia, Italy
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Universitario Monte S. Angelo , Via Cintia 4, 80126 Napoli, Italy
| | - Sergio Abbate
- Dipartimento di Medicina Molecolare e Traslazionale, Università degli Studi di Brescia , Viale Europa 11, 25123 Brescia, Italy
| |
Collapse
|
10
|
Synthesis, crystal structure, biological evaluation, and molecular docking studies of quinoline-arylpiperazine derivative as potent α1A-adrenoceptor antagonist. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
11
|
Pereira V, Santos M, Cacho J, Marques JC. Assessment of the development of browning, antioxidant activity and volatile organic compounds in thermally processed sugar model wines. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.10.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
12
|
Abstract
This review summarises known crinoid chemistry from 1877 to the present day, and discusses some of the problems (and potential solutions) with establishing crinoid natural product structures, as well as future directions for crinoid research.
Collapse
Affiliation(s)
- Yunjiang Feng
- Griffith Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
| | - Shahan Khokhar
- Griffith Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
| | - Rohan A. Davis
- Griffith Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
| |
Collapse
|
13
|
Kiske C, Nörenberg S, Ecker M, Ma X, Taniguchi T, Monde K, Eisenreich W, Engel KH. Reinvestigation of the Absolute Configurations of Chiral β-Mercaptoalkanones Using Vibrational Circular Dichroism and 1H NMR Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:8563-8571. [PMID: 27779841 DOI: 10.1021/acs.jafc.6b03670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The absolute configurations of chiral β-mercaptoalkanones were previously assigned on the basis of the 1H NMR anisotropy method using (S)-2-methoxy-2-(1-naphthyl)propionic acid ((S)-MαNP) as the chiral auxiliary. This study presents a reinvestigation of the configurations of 4-mercapto-2-pentanone 1, 4-mercapto-2-heptanone 2, and 2-mercapto-4-heptanone 3. Enantiomers of 1, 2, and 3 were obtained by lipase-catalyzed hydrolyses of the respective acetylthioalkanones. Upon derivatization with (S)-MαNP, the configurations of the reaction products were deduced based on the order of the HPLC elution of the diastereoisomeric thioesters, assuming that the sector rule previously developed for secondary alcohols is also valid for thiols. In addition, the configurations were experimentally determined by vibrational circular dichroism (VCD) and 1H NMR analyses after esterification with (R)-hydratropic acid (HTA) and 2-methoxy-2-phenylacetic acid (MPA). The assignments of the configurations using VCD and NMR analyses of HTA- and MPA-thioesters were in agreement. However, they were opposite to those deduced for (S)-MαNP thioesters via the sector rule. Consequently, the formerly assigned configurations of β-mercaptoalkanones deduced via investigation of (S)-MαNP-derivatives have to be revised.
Collapse
Affiliation(s)
- Christiane Kiske
- Lehrstuhl für Allgemeine Lebensmitteltechnologie, Technische Universität München , Maximus-von-Imhof-Forum 2, D-85354 Freising-Weihenstephan, Germany
| | - Svenja Nörenberg
- Lehrstuhl für Allgemeine Lebensmitteltechnologie, Technische Universität München , Maximus-von-Imhof-Forum 2, D-85354 Freising-Weihenstephan, Germany
| | - Miriam Ecker
- Lehrstuhl für Allgemeine Lebensmitteltechnologie, Technische Universität München , Maximus-von-Imhof-Forum 2, D-85354 Freising-Weihenstephan, Germany
| | - Xingyue Ma
- Lehrstuhl für Allgemeine Lebensmitteltechnologie, Technische Universität München , Maximus-von-Imhof-Forum 2, D-85354 Freising-Weihenstephan, Germany
| | - Tohru Taniguchi
- Frontier Research Center for Post-Genome Science and Technology, Faculty of Advanced Life Science, Hokkaido University , Kita 21 Nishi 11, Sapporo 001-0021, Japan
| | - Kenji Monde
- Frontier Research Center for Post-Genome Science and Technology, Faculty of Advanced Life Science, Hokkaido University , Kita 21 Nishi 11, Sapporo 001-0021, Japan
| | - Wolfgang Eisenreich
- Lehrstuhl für Biochemie, Technische Universität München , Lichtenbergstraße 4, D-85747 Garching, Germany
| | - Karl-Heinz Engel
- Lehrstuhl für Allgemeine Lebensmitteltechnologie, Technische Universität München , Maximus-von-Imhof-Forum 2, D-85354 Freising-Weihenstephan, Germany
| |
Collapse
|
14
|
Jiménez-Romero C, Rode JE, Rodríguez AD. Reassignment of the absolute configuration of plakinidone from the sponge consortium Plakortis halichondrioides-Xestospongia deweerdtae using a combination of synthesis and a chiroptical approach. TETRAHEDRON, ASYMMETRY 2016; 27:410-419. [PMID: 28190935 PMCID: PMC5295471 DOI: 10.1016/j.tetasy.2016.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Recent work by Wu et al. in connection with the first synthesis of the marine natural product plakinidone revealed that the most salient feature of its purported structure, a six-membered perlactone moiety, was in fact a five-membered lactone, i.e. a 3-methyl-4-hydroxy-2(5H)-furanone or tetronic acid ring. With the planar structure of plakinidone confidently revised, we undertook a new investigation to unambiguously establish its absolute configuration. Upon preparing two stable derivatives 1 and 5 from a sample of naturally occurring plakinidone extracted from the sponge association Plakortis halichondriodes-Xetospongia deweerdtae, the absolute configuration was assigned by synthesis and vibrational and electronic circular dichroism (VCD and ECD) measurements in combination with density functional theory calculations at the B3LYP/aug-cc-pVDZ/PCM(CH3CN) level of theory. Our combined efforts and the agreement between the experimental and calculated VCD/ECD spectra of 1 revealed that the absolute configuration of plakinidone was in fact (11S,17R) and not the formerly reported (11S,17S) diastereomer assigned by Wu et al.. Therefore, we propose that natural plakinidone is accurately represented by structure 12.
Collapse
Affiliation(s)
- Carlos Jiménez-Romero
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce de León Avenue, San Juan, Puerto Rico 00926
| | - Joanna E. Rode
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Abimael D. Rodríguez
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce de León Avenue, San Juan, Puerto Rico 00926
| |
Collapse
|
15
|
Xu W, Shao B, Xu X, Jiang R, Yuan M. Structural analysis of (S)-1-((1H-benzo[d][1,2,3]triazol-1-yl)oxy)-3-(4-(2-methoxyphenyl)piperazin-1-yl)propan-2-ol and binding mechanism with α1A-adrenoceptor: TDDFT calculations, X-ray crystallography and molecular docking. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.10.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
16
|
|
17
|
Xu W, Huang JJ, Shao BH, Xu XJ, Jiang RW, Yuan M. X-ray Crystallography, DFT Calculations and Molecular Docking of Indole-Arylpiperazine Derivatives as α1A-Adrenoceptor Antagonists. Molecules 2015; 20:19674-89. [PMID: 26528963 PMCID: PMC6332402 DOI: 10.3390/molecules201119651] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 10/16/2015] [Indexed: 01/22/2023] Open
Abstract
Indole-arylpiperazine derivatives have exhibited good selectivity for the α1A-adrenoceptor, but the structure-activity-binding mechanism relationship remains unclear. In the current study, three compounds (1, 2 and 3) were investigated through single-crystal X-ray diffraction analysis, density functional theory (DFT) calculations and molecular docking using a homology model of the α1A receptor. Compounds 1 and 3 form H-bonds networks to stabilize their three-dimensional structures, while C–H···π interactions play a significant role in the packing of 2. Based on DFT-optimized conformations, the HOMO-LUMO energy gaps and molecular electrostatic potential (MEP) were theoretically calculated at the B3LYP/6-311G (d, p) level of theory. Chemical reactivity increases in the order of 3 < 2 < 1, and the maximum positive region of the MEP maps is mainly localized over the NH group. The binding mechanisms of ligand-α1A-adrenoceptor complexes were illustrated by molecular docking. Binding to Gln177 of the second extracellular loop region via hydrogen bonds is likely to be essential for α1A-selective antagonists. The present work sheds light on the studies of structure-activity-binding mechanism and aids in the design of α1A antagonists with high selectivity.
Collapse
Affiliation(s)
- Wei Xu
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China.
| | - Jun-Jun Huang
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China.
| | - Bin-Hao Shao
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China.
| | - Xing-Jie Xu
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China.
| | - Ren-Wang Jiang
- School of Pharmaceutical Sciences, Jinan University, Guangzhou 510632, China.
| | - Mu Yuan
- Pharmaceutical Research Center, Guangzhou Medical University, 195# Dongfengxi Road, Guangzhou 510182, China.
| |
Collapse
|
18
|
Tian LW, Feng Y, Tran TD, Shimizu Y, Pfeifer T, Forster PI, Quinn RJ. Tyrosyl-DNA Phosphodiesterase I Inhibitors from the Australian Plant Macropteranthes leichhardtii. JOURNAL OF NATURAL PRODUCTS 2015; 78:1756-1760. [PMID: 26149757 DOI: 10.1021/acs.jnatprod.5b00211] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Mass-directed isolation of the CH2Cl2/MeOH extract from the bark of an Australian plant, Macropteranthes leichhardtii, resulted in the purification of a new phenylpropanoid glucoside, macropteranthol (1), together with four known analogues (2-5). The structure of compound 1 was elucidated by NMR and MS data analyses and quantum chemical calculations. Compounds 3 and 5 showed inhibitory activity against tyrosyl-DNA phosphodiesterase I with IC50 values of ∼1.0 μM.
Collapse
Affiliation(s)
- Li-Wen Tian
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Yunjiang Feng
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Trong D Tran
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| | - Yoko Shimizu
- ‡Centre for Drug Research and Development, Vancouver, BC 2405, Canada
| | - Tom Pfeifer
- ‡Centre for Drug Research and Development, Vancouver, BC 2405, Canada
| | | | - Ronald J Quinn
- †Eskitis Institute for Drug Discovery, Griffith University, Brisbane, QLD 4111, Australia
| |
Collapse
|
19
|
Monteiro AF, Batista JM, Machado MA, Severino RP, Blanch EW, Bolzani VS, Vieira PC, Severino VGP. Structure and Absolute Configuration of Diterpenoids from Hymenaea stigonocarpa. JOURNAL OF NATURAL PRODUCTS 2015; 78:1451-5. [PMID: 26039872 DOI: 10.1021/acs.jnatprod.5b00166] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Chemical investigations of the ethanolic extracts from the flowers and leaves of Hymenaea stigonocarpa Mart. ex Hayne afforded one new ent-halimane diterpenoid, 18-hydroxy-ent-halima-1(10),13-(E)-dien-15-oic acid (1), together with five known compounds (2-6). The structural elucidation was performed by means of NMR (COSY, HSQC, HMBC, and NOESY) and MS analyses. Complete (1)H and (13)C NMR data assignments are also reported for labd-13-en-8β-ol-15-oic (2) and labd-7,13-dien-15-oic (3) acids. The absolute configurations of 1 and 2 were established by comparison of experimental and calculated Raman optical activity spectra.
Collapse
Affiliation(s)
- Afif F Monteiro
- †Unidade Acadêmica Especial de Física e Química, Universidade Federal de Goiás, Avenida Dr. Lamartine Pinto de Avelar, 1120, 75704-020, Catalão, GO, Brazil
| | - João M Batista
- ‡Departamento de Química Orgânica, Universidade Estadual Paulista "Júlio de Mesquita Filho", Rua Prof. Francisco Degni, 55, 14800-060, Araraquara, SP, Brazil
| | - Michelle A Machado
- †Unidade Acadêmica Especial de Física e Química, Universidade Federal de Goiás, Avenida Dr. Lamartine Pinto de Avelar, 1120, 75704-020, Catalão, GO, Brazil
| | - Richele P Severino
- †Unidade Acadêmica Especial de Física e Química, Universidade Federal de Goiás, Avenida Dr. Lamartine Pinto de Avelar, 1120, 75704-020, Catalão, GO, Brazil
| | - Ewan W Blanch
- §Manchester Institute of Biotechnology and Faculty of Life Sciences, University of Manchester, 131 Princess Street, M1 7DN, Manchester, United Kingdom
| | - Vanderlan S Bolzani
- ‡Departamento de Química Orgânica, Universidade Estadual Paulista "Júlio de Mesquita Filho", Rua Prof. Francisco Degni, 55, 14800-060, Araraquara, SP, Brazil
| | - Paulo C Vieira
- ⊥Departamento de Química, Universidade Federal de São Carlos, Rod. Washington Luis, km 235, 13565-905, São Carlos, SP, Brazil
| | - Vanessa G P Severino
- †Unidade Acadêmica Especial de Física e Química, Universidade Federal de Goiás, Avenida Dr. Lamartine Pinto de Avelar, 1120, 75704-020, Catalão, GO, Brazil
| |
Collapse
|
20
|
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.
Collapse
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
| | | |
Collapse
|
21
|
Buendía-Trujillo AI, Torrres-Valencia JM, Joseph-Nathan P, Burgueño-Tapia E. The absolute configuration of angular 3′-acyloxypyranocoumarins by vibrational circular dichroism exciton chirality. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.09.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
22
|
He P, Wang X, Guo X, Ji Y, Zhou C, Shen S, Hu D, Yang X, Luo D, Dukor R, Zhu H. Vibrational circular dichroism study for natural bioactive schizandrin and reassignment of its absolute configuration. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.108] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
23
|
Batista JM, da Silva Bolzani V. Determination of the Absolute Configuration of Natural Product Molecules Using Vibrational Circular Dichroism. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2014. [DOI: 10.1016/b978-0-444-63294-4.00013-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
24
|
Ren J, Li GY, Shen L, Zhang GL, Nafie LA, Zhu HJ. Challenges in the assignment of relative and absolute configurations of complex molecules: computation can resolve conflicts between theory and experiment. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.10.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
25
|
Cherblanc FL, Lo YP, Herrebout WA, Bultinck P, Rzepa HS, Fuchter MJ. Mechanistic and chiroptical studies on the desulfurization of epidithiodioxopiperazines reveal universal retention of configuration at the bridgehead carbon atoms. J Org Chem 2013; 78:11646-55. [PMID: 24073665 PMCID: PMC3894640 DOI: 10.1021/jo401316a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The stereochemistry of the desulfurization products of chiral natural and synthetic 3,6-epidithiodiketopiperazines (ETPs) is specified inconsistently in the literature. Qualitative mechanisms have been put forward to explain apparently divergent stereochemical pathways, but the quantitative feasibility of such mechanistic pathways has not been assessed. We report a computational study revealing that desulfurization of ETPs should occur universally with retention of configuration. While the majority of stereochemically assigned and reassigned cases fit this model, until now desulfurization of the synthetic gliotoxin analogue shown has remained assigned as proceeding via inversion of configuration. Through detailed chiroptical studies comparing experimentally obtained optical rotation values, electronic circular dichroism spectra, and vibrational circular dichroism spectra to their computationally simulated counterparts as well as chemical derivatization studies, we have unambiguously demonstrated that contrary to its current assignment in the literature, the desulfurization of this synthetic ETP also proceeds with retention of configuration.
Collapse
Affiliation(s)
- Fanny L Cherblanc
- Department of Chemistry, Imperial College London , South Kensington Campus, London SW7 2AZ, U.K
| | | | | | | | | | | |
Collapse
|
26
|
Rossi D, Pedrali A, Marra A, Pignataro L, Schepmann D, Wünsch B, Ye L, Leuner K, Peviani M, Curti D, Azzolina O, Collina S. Studies on the Enantiomers of as Neuroprotective Agents: Isolation, Configurational Assignment, and Preliminary Biological Profile. Chirality 2013; 25:814-22. [DOI: 10.1002/chir.22223] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 06/19/2013] [Accepted: 06/19/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Alice Pedrali
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Annamaria Marra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Luca Pignataro
- Dipartimento di Chimica; Università degli Studi di Milano, Istituto di Scienze e Tecnologie Molecolari (ISTM) del CNR; Milan Italy
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry; University of Münster; Münster Germany
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry; University of Münster; Münster Germany
| | - Lian Ye
- Molecular & Clinical Pharmacy; FAU Erlangen/Nuremberg; Erlangen Germany
| | - Kristina Leuner
- Molecular & Clinical Pharmacy; FAU Erlangen/Nuremberg; Erlangen Germany
| | - Marco Peviani
- Department of Biology and Biotechnology “L. Spallanzani”, Laboratory of Cellular and Molecular Neuropharmacology; University of Pavia; Pavia Italy
| | - Daniela Curti
- Department of Biology and Biotechnology “L. Spallanzani”, Laboratory of Cellular and Molecular Neuropharmacology; University of Pavia; Pavia Italy
| | - Ornella Azzolina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology section; University of Pavia; Pavia Italy
| |
Collapse
|
27
|
Huo JP, Luo JC, Wu W, Xiong JF, Mo GZ, Wang ZY. Synthesis and Characterization of Fluorescent Brightening Agents with Chiral 2(5H)-Furanone and Bis-1,2,3-triazole Structure. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401149p] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jing-Pei Huo
- School of Chemistry and Environment,
Key Laboratory
of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, People’s
Republic of China
| | - Jian-Cheng Luo
- School of Chemistry and Environment,
Key Laboratory
of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, People’s
Republic of China
| | - Wei Wu
- School of Chemistry and Environment,
Key Laboratory
of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, People’s
Republic of China
| | - Jin-Feng Xiong
- School of Chemistry and Environment,
Key Laboratory
of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, People’s
Republic of China
| | - Guang-Zhen Mo
- School of Chemistry and Environment,
Key Laboratory
of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, People’s
Republic of China
| | - Zhao-Yang Wang
- School of Chemistry and Environment,
Key Laboratory
of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University, Guangzhou, 510006, People’s
Republic of China
| |
Collapse
|
28
|
Yong KWL, Barnych B, De Voss JJ, Vatèle JM, Garson MJ. Plakortolide stereochemistry revisited: the checkered history of plakortolides e and I. JOURNAL OF NATURAL PRODUCTS 2012; 75:1792-1797. [PMID: 23066658 DOI: 10.1021/np3005634] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The relative configuration of the plakortolide metabolite (4) isolated from a Madagascan Plakortis sp. and named (+)-plakortolide I is revised following reassignment of the ¹³C signals for C-7 and C-16, thereby establishing that the metabolite isolated was likely (+)-plakortolide E (3). We propose that the name "plakortolide I" should be retained for the plakortolide metabolite 5 first isolated by the Faulkner group; its enantiomer 4 can then be named ent-plakortolide I in line with the description of Barnych and Vatèle. The spectroscopic data for MPA esters prepared from synthetic samples of seco derivatives of plakortolide E (3) and ent-plakortolide I (4) were compared with those of MPA esters of seco derivatives from naturally isolated plakortolides L (1) and K (2) and of seco-plakortolide E (6a). Likewise, the spectroscopic data for MTPA esters derived from 3 and 4 were compared with data for the MTPA esters derived from 5. These various comparisons established that the sign of the specific rotation associated with the natural isolates is an unreliable indicator of absolute configuration and verify that the absolute configurations of plakortolides L (1), K (2), E (3), and I (5) are (3S, 4S, 6S), (3R, 4R, 6S), (3R, 4R, 6R), and (3S, 4S, 6R), respectively.
Collapse
Affiliation(s)
- Ken W L Yong
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane QLD 4072, Australia
| | | | | | | | | |
Collapse
|
29
|
Xie J, Han H, Sun L, Zeng H, Sun B. Resolution of racemic 3-hydroxy-4,5-dimethyl-2(5H)-furanone (sotolon) by packed column supercritical fluid chromatography. FLAVOUR FRAG J 2012. [DOI: 10.1002/ffj.3091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jianchun Xie
- Beijing Key Laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing; 100048; P.R. China
| | - Huilan Han
- Beijing Key Laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing; 100048; P.R. China
| | - Lei Sun
- Beijing Key Laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing; 100048; P.R. China
| | - Huiying Zeng
- Beijing Key Laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing; 100048; P.R. China
| | - Baoguo Sun
- Beijing Key Laboratory of Flavor Chemistry; Beijing Technology and Business University; Beijing; 100048; P.R. China
| |
Collapse
|
30
|
Suárez-Castillo OR, Meléndez-Rodríguez M, Castelán-Duarte LE, Zúñiga-Estrada EA, Cruz-Borbolla J, Morales-Ríos MS, Joseph-Nathan P. Absolute configuration assignment of 3-oxindolylacetyl-4-phenyloxazolidinone derivatives. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.11.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
31
|
Velázquez-Jiménez R, Torres-Valencia JM, Cerda-García-Rojas CM, Hernández-Hernández JD, Román-Marín LU, Manríquez-Torres JJ, Gómez-Hurtado MA, Valdez-Calderón A, Motilva V, García-Mauriño S, Talero E, Avila J, Joseph-Nathan P. Absolute configuration of podophyllotoxin related lignans from Bursera fagaroides using vibrational circular dichroism. PHYTOCHEMISTRY 2011; 72:2237-2243. [PMID: 21840559 DOI: 10.1016/j.phytochem.2011.07.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 06/25/2011] [Accepted: 07/19/2011] [Indexed: 05/31/2023]
Abstract
The ethanol extract from the dried exudate of Bursera fagaroides (Burseraceae) showed significant cytotoxic activity in the HT-29 (human colon adenocarcinoma) test system. The extract provided four podophyllotoxin related lignans, identified as (7'R,8R,8'R)-(-)-deoxypodophyllotoxin (3), (7'R,8R,8'R)-(-)-morelensin (4), (8R,8'R)-(-)-yatein (5), and (8R,8'R)-(-)-5'-desmethoxyyatein (6), whose spectroscopic and chiroptical properties were compared with those of (7R,7'R,8R,8'R)-(-)-podophyllotoxin (1) and its acetyl derivative (2). Their absolute configurations were assigned by comparison of the vibrational circular dichroism spectra of 1 and 3 with those obtained by density functional theory calculations.
Collapse
Affiliation(s)
- René Velázquez-Jiménez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Km 4.5 Carretera Pachuca-Tulancingo, Mineral de la Reforma, Hidalgo 42184, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|