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Grabarczyk M, Duda-Madej A, Romanenko F, Maciejewska G, Mączka W, Białońska A, Wińska K. New Hydroxylactones and Chloro-Hydroxylactones Obtained by Biotransformation of Bicyclic Halolactones and Their Antibacterial Activity. Molecules 2024; 29:2820. [PMID: 38930886 PMCID: PMC11206757 DOI: 10.3390/molecules29122820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
The aim of this study was to obtain new halolactones with a gem-dimethyl group in the cyclohexane ring (at the C-3 or C-5 carbon) and a methyl group in the lactone ring and then subject them to biotransformations using filamentous fungi. Halolactones in the form of mixtures of two diasteroisomers were subjected to screening biotransformations, which showed that only compounds with a gem-dimethyl group located at the C-5 carbon were transformed. Strains from the genus Fusarium carried out hydrolytic dehalogenation, while strains from the genus Absidia carried out hydroxylation of the C-7 carbon. Both substrates and biotransformation products were then tested for antimicrobial activity against multidrug-resistant strains of both bacteria and yeast-like fungi. The highest antifungal activity against C. dubliniensis and C. albicans strains was obtained for compound 5b, while antimicrobial activity against S. aureus MRSA was obtained for compound 4a.
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Affiliation(s)
- Małgorzata Grabarczyk
- Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland; (F.R.); (W.M.); (K.W.)
| | - Anna Duda-Madej
- Department of Microbiology, Faculty of Medicine, Wroclaw Medical University, Chałubińskiego 4, 50-368 Wrocław, Poland
| | - Fedor Romanenko
- Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland; (F.R.); (W.M.); (K.W.)
| | - Gabriela Maciejewska
- Faculty of Chemistry, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | - Wanda Mączka
- Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland; (F.R.); (W.M.); (K.W.)
| | - Agata Białońska
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland;
| | - Katarzyna Wińska
- Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland; (F.R.); (W.M.); (K.W.)
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2
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Yoshioka E, Takahashi H, Miyabe H, Wanibe H, Hontani Y, Hatsuse K, Shimizu R, Kawashima A, Kohtani S. Oxidation of α,β-Unsaturated Ketones by Organophotocatalysis Using Rhodamine 6G under Visible Light Irradiation: Insight into the Reaction Mechanism. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1652-3370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe oxidative transformation of α,β-unsaturated ketones was investigated under visible-light-induced photocatalytic conditions using rhodamine 6G as an organophotocatalyst. In this organocatalysis, the mild co-oxidant bromotrichloromethane (BrCCl3) acts not only as a quencher toward the activated photocatalyst species, having reductant properties, but also as a brominating reagent for the intermediate radicals. This study shows that bromine atom transfer from BrCCl3 to intermediate radicals is a key step in the reaction mechanism of our oxidation method.
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3
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Masila VM, Ndakala AJ, Byamukama R, Midiwo JO, Kamau RW, Wang M, Kumarihamy M, Zhao J, Heydreich M, Muhammad I. Synthesis, structural assignments and antiinfective activities of 3- O-benzyl-carvotacetone and 3-hydroxy-2-isopropyl-5-methyl- p-benzoquinone. Nat Prod Res 2020; 35:3599-3607. [PMID: 31997645 DOI: 10.1080/14786419.2020.1716346] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In an attempt to synthesize carvotacetone analogues, new 3-O-benzyl-carvotacetone (10) and previously reported 3-hydroxy-2-isopropyl-5-methyl-p-benzoquinone (11) were synthesized from piperitone (7). In this work, we describe the synthesis of 10 and other analogues from 7. Luche reduction of 7 to cis-piperitol (8), followed by benzylation yielded 3-O-benzyl-piperitol (9). Riley oxidation of 9 afforded corresponding ketone 10, 11 and 3-benzyloxy-4-isopropylcyclohex-1-enecarbaldehyde (12). Structures of these compounds were determined based on NMR, IR and LC-MS spectral data. Compound 11, exhibited antiplasmodial activities against chloroquine-sensitive (D6) and resistant (W2) strains of Plasmodium falciparum with IC50 values of 0.697 and 0.653 µg/mL, respectively. In addition, compound 11 was active against Cryptococcus neoformans with an IC50 value of 3.11 µg/mL, compared to reference standard fluconazole (IC50 value of 1.87 µg/mL), while 10 and 12 were inactive against both organisms. This is the first report of the antiplasmodial and anticryptococcal activity of compound 11.
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Affiliation(s)
- Veronica M Masila
- Department of Chemistry, College of Natural and Applied Sciences, Makerere University, Kampala, Uganda
| | - Albert J Ndakala
- Department of Chemistry, School of Physical Sciences, University of Nairobi, Nairobi, Kenya
| | - Robert Byamukama
- Department of Chemistry, College of Natural and Applied Sciences, Makerere University, Kampala, Uganda
| | - Jacob O Midiwo
- Department of Chemistry, School of Physical Sciences, University of Nairobi, Nairobi, Kenya
| | - Rahab W Kamau
- Department of Chemistry, College of Natural and Applied Sciences, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Mei Wang
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Mississippi, USA
| | - Mallika Kumarihamy
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Mississippi, USA
| | - Jianping Zhao
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Mississippi, USA
| | | | - Ilias Muhammad
- National Centre for Natural Products Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, Mississippi, USA
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Grabarczyk M, Wińska K, Mączka W, Żarowska B, Białońska A, Anioł M. Hydroxy lactones with the gem-dimethylcyclohexane system – Synthesis and antimicrobial activity. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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5
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Reddy UC, Manheri MK. 1-Hydroxymethyl-7-oxabicyclo[2.2.1]hept-2-ene skeleton in enantiopure form through enzymatic kinetic resolution. Chirality 2019; 31:336-347. [PMID: 30753757 DOI: 10.1002/chir.23060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 11/11/2022]
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6
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7
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Gu Y, Xue P. Pseudomonas
sp. Lipase Immobilized on Magnetic Porous Polymer Microspheres as an Effective and Recyclable Biocatalyst for Resolution of Allylic Alcohols. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaohua Gu
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, College of Chemistry & Chemical Engineering; Ningxia University; Yinchuan 750021 China
| | - Ping Xue
- State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, College of Chemistry & Chemical Engineering; Ningxia University; Yinchuan 750021 China
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Takahashi A, Ogura Y, Enomoto M, Kuwahara S. Enantioselective synthesis of the tricyclic core of (+)-strigol. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Takeuchi J, Ohnishi T, Okamoto M, Todoroki Y. The selectivity of 6-nor-ABA and 7'-nor-ABA for abscisic acid receptor subtypes. Bioorg Med Chem Lett 2015; 25:3507-10. [PMID: 26174552 DOI: 10.1016/j.bmcl.2015.06.088] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 05/24/2015] [Accepted: 06/27/2015] [Indexed: 11/28/2022]
Abstract
Abscisic acid (ABA), a plant hormone, is involved in many plant development processes and environmental stress responses that are regulated by a Pyrabactin Resistant 1 (PYR)/Pyrabactin Resistant-Like (PYL)/Regulatory Component of ABA Receptor (RCAR) receptor protein-mediated signal transduction pathway. In Arabidopsis thaliana, PYL proteins constitute a 14-member family comprising two distinct subclasses: dimeric receptors (PYR1 and PYL1-PYL3) and monomeric receptors (PYL4-PYL13). The individual contributions of PYL subclasses/subtypes with specific physiological actions are still poorly understood; consequently, the development of PYL subclass/subtype-selective agonists should be useful to reveal the different functions of these receptors. In this study, we focused on the ABA analogs 6-nor-ABA and 7'-nor-ABA, which were expected to function as monomeric receptor-selective agonists on the basis of crystal structures of PYL-ABA complexes and sequence alignments of PYL subtypes. In a protein phosphatase 2C (PP2C) assay, the agonist activities of both analogs were lower than those of ABA toward all tested PYL proteins, regardless of subclass/subtype. Nevertheless, we found that 6-nor-ABA acts as a selective agonist at the physiological level: it induced stomatal closure but did not inhibit seed germination and root growth. On the basis of observed inhibitory activity against PP2C among different PYL subtypes, this biological effect of 6-nor-ABA may be attributed to the activity of that agonist on PYL5 and/or PYL6.
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Affiliation(s)
- Jun Takeuchi
- Graduate School of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Toshiyuki Ohnishi
- Graduate School of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan; Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
| | - Masanori Okamoto
- Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan
| | - Yasushi Todoroki
- Graduate School of Agriculture, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan; Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan; Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan.
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Grudniewska A, Kłobucki M, Dancewicz K, Szczepanik M, Gabryś B, Wawrzeńczyk C. Synthesis and Antifeedant Activity of Racemic and Optically Active Hydroxy Lactones with the p-Menthane System. PLoS One 2015; 10:e0131028. [PMID: 26132506 PMCID: PMC4488555 DOI: 10.1371/journal.pone.0131028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 05/26/2015] [Indexed: 11/25/2022] Open
Abstract
Two racemic and two enantiomeric pairs of new δ-hydroxy-γ-lactones based on the p-menthane system were prepared from racemic and optically active cis- and trans-piperitols. The Johnson-Claisen rearrangement of the piperitols, epoxidation of the γδ-unsaturated esters, and acidic lactonization of the epoxy esters were described. The structures of the compounds were confirmed spectroscopically. The antifeedant activities of the hydroxy lactones and racemic piperitone were evaluated against three insect pests: lesser mealworm, Alphitobius diaperinus (Panzer); Colorado potato beetle, Leptinotarsa decemlineata (Say); and peach-potato aphid, Myzus persicae (Sulz.). The chemical transformation of piperitone by the introduction of a lactone moiety and a hydroxy group changed its antifeedant properties. Behavioral bioassays showed that the feeding deterrent activity depended on the insect species and the structure of the compounds. All hydroxy lactones deterred the settling of M. persicae. Among chewing insects, the highest sensitivity showed A. diaperinus adults.
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Affiliation(s)
- Aleksandra Grudniewska
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Marek Kłobucki
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Katarzyna Dancewicz
- Department of Biology and Ecology, University of Zielona Góra, Zielona Góra, Poland
| | - Maryla Szczepanik
- Department of Invertebrate Zoology, Nicolaus Copernicus University, Toruń, Poland
| | - Beata Gabryś
- Department of Biology and Ecology, University of Zielona Góra, Zielona Góra, Poland
| | - Czesław Wawrzeńczyk
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
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11
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Dethe DH, Dherange BD. Enantioselective Total Syntheses of (+)-Hostmanin A, (−)-Linderol A, (+)-Methyllinderatin and Structural Reassignment of Adunctin E. J Org Chem 2015; 80:4526-31. [DOI: 10.1021/acs.joc.5b00331] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dattatraya H. Dethe
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
| | - Balu D. Dherange
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208016, India
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12
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Szczepanik M, Grudniewska A, Zawitowska B, Wawrzeńczyk C. Structure-related antifeedant activity of halolactones with a p-menthane system against the lesser mealworm, Alphitobius diaperinus Panzer. PEST MANAGEMENT SCIENCE 2014; 70:953-958. [PMID: 24009153 DOI: 10.1002/ps.3634] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 08/13/2013] [Accepted: 09/06/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Feeding deterrent activity of synthetic halogen lactones against larvae and adults of the lesser mealworm, Alphitobius diaperinus Panzer, in laboratory choice and no-choice tests was studied. The compounds were synthesised from racemic and enantiomerically enriched (ee = 91-98%) cis- and trans-piperitols, which were obtained from (±)-piperitone. RESULTS Structure-activity relationship studies identified several synthetic halolactones with a very strong feeding deterrent activity. The most active were the enantiomeric chlorolactones with chiral centre configurations (1S,4S,5R,6R) and (1R,4R,5S,6S) and their racemic mixture. The racemic bromo- and iodolactones obtained from cis-piperitol and saturated lactones with a chiral centre configuration (1R,4S,6R) were also very good antifeedants in comparison with piperitone. Most of the studied compounds were better antifeedants against adults than against larvae-among the 21 compounds, only one bromolactone with a chiral centre configuration (1S,4R,5R,6R) was a weaker deterrent for adults. CONCLUSION Chemical transformation of the piperitone molecule by the introduction of a lactone function and a halogen atom strongly changed its antifeedant properties against the lesser mealworm. Optimum activity is dependent on the presence of a chlorine atom at C-5 of the cyclohexane ring. The activity of bromo- and iodolactones depended strongly on the chiral centre configuration and the halogen substituent.
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Affiliation(s)
- Maryla Szczepanik
- Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Toruń, Poland
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13
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Das P, Valente EJ, Hamme AT. A Model Study toward the Concise Synthesis of Bromotyrosine Derived Spiroisoxazoline Natural Products and Analogous Core Structures. European J Org Chem 2014; 2014:2659-2663. [PMID: 24891836 PMCID: PMC4039208 DOI: 10.1002/ejoc.201400009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Indexed: 11/06/2022]
Abstract
A model study of the first non-aromatic ring based approach toward α-hydroxyspiroisoxazolines resembling the bromotyrosine derived natural product and analogous spiroisoxazoline core structures were implemented. The desired molecular architecture was achieved through the multifunctionalization of a key 1,3-diketo spiroisoxazoline. Our strategy could serve as an efficient alternative of previously developed approaches that utilize an aromatic ring oxidation as the essential step to synthesize this class of natural products.
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Affiliation(s)
- Prasanta Das
- Department of Chemistry & Biochemistry, Jackson State University 1400 J. R. Lynch St, PO Box 17910, Jackson, Ms 39217, USA, Fax: (+)1 601 979 3674, Tel: (+)1 601 979 3713, Homepage: http://www.jsums.edu/chemistry/ashton-t-hamme-ii/
| | - Edward J. Valente
- Department of Chemistry, University of Portland, 5000 N Willamette Blvd., Portland, OR 97203, USA
| | - Ashton T. Hamme
- Department of Chemistry & Biochemistry, Jackson State University 1400 J. R. Lynch St, PO Box 17910, Jackson, Ms 39217, USA, Fax: (+)1 601 979 3674, Tel: (+)1 601 979 3713, Homepage: http://www.jsums.edu/chemistry/ashton-t-hamme-ii/
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Moure VR, Fabrício C, Frensch G, Marques FA, Mitchell DA, Krieger N. Enhancing the enantioselectivity of the lipase from Burkholderia cepacia LTEB11 towards the resolution of secondary allylic alcohols. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2013.09.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Lone AM, Bhat BA, Mehta G. A general, flexible, ring closing metathesis (RCM) based strategy for accessing the fused furo[3,2-b]furanone moiety present in diverse bioactive natural products. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.08.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Grudniewska A, Dancewicz K, Białońska A, Wawrzeńczyk C, Gabryś B. Piperitone-derived saturated lactones: synthesis and aphid behavior-modifying activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:3364-72. [PMID: 23477664 DOI: 10.1021/jf3052219] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Two racemic and two enantiomeric pairs of new saturated lactones with the p-menthane system were obtained. The lactones were synthesized from racemic and enantiomerically enriched cis- and trans-piperitols, which were obtained from piperitone. The structures of the compounds were confirmed by spectroscopic data. The antifeedant activity of piperitone to Myzus persicae was studied, and the biological consequences of structural modifications of piperitone, that is, lactonization and chiral center configuration, were examined as well. The behavioral responses of M. persicae to piperitone and piperitone-derived saturated lactones were investigated to reveal the biological background of their deterrent activity. Piperitone appeared rather neutral or weakly deterrent to aphids. The introduction of a lactone moiety into a piperitone molecule dramatically changed its biological activity. All piperitone-derived lactones evoked negative aphid responses. However, the deterrent activity of individual compounds varied in potency, the time of expression, and the duration of the effect, depending on the spatial structure of the lactone. Lactones (1R,3S,6R)-3-isopropyl-6-methyl-9-oxabicyclo[4.3.0]nonan-8-one and trans-3-isopropyl-6-methyl-9-oxabicyclo[4.3.0]nonan-8-one showed the broadest ranges and the highest potencies and durabilities of deterrent activity to M. persicae: they acted immediately after application, caused a cessation of probing before aphids reached phloem elements, and decreased the quality of phloem sap.
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Affiliation(s)
- Aleksandra Grudniewska
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
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Parthasarathy G, Besnard C, Kündig EP. An expedient approach to the total synthesis of (+)-5-epi-eudesm-4(15)-ene-1β,6β-diol. Chem Commun (Camb) 2012; 48:11241-3. [DOI: 10.1039/c2cc36260k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wińska K, Kula J, Wawrzeńczyk C. Synthesis and odour characteristics of racemic and optically active oxy-derivatives of gem-dimethylcyclohexene. FLAVOUR FRAG J 2011. [DOI: 10.1002/ffj.2049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Katarzyna Wińska
- Department of Chemistry; Wrocław University of Environmental and Life Sciences; Norwida 25; 50-375; Wrocław; Poland
| | - Józef Kula
- Institute of General Food Chemistry; Technical University of Lodz; Stefanowskiego 4/10; 90-924; Lodz; Poland
| | - Czesław Wawrzeńczyk
- Department of Chemistry; Wrocław University of Environmental and Life Sciences; Norwida 25; 50-375; Wrocław; Poland
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Grudniewska A, Dancewicz K, Białońska A, Ciunik Z, Gabryś B, Wawrzeńczyk C. Synthesis of piperitone-derived halogenated lactones and their effect on aphid probing, feeding, and settling behavior. RSC Adv 2011. [DOI: 10.1039/c1ra00270h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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