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Structure-activity relationships for chain-shortened analogs of (Z)-5-decenyl acetate, a pheromone component of the turnip moth,Agrotis segetum. J Chem Ecol 2013; 16:667-84. [PMID: 24263583 DOI: 10.1007/bf01016478] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/1988] [Accepted: 04/13/1989] [Indexed: 10/25/2022]
Abstract
Structure-activity relationships for chain-shortened analogs of (Z)-5-decenyl acetate, a pheromone component of the turnip moth,Agrotis segetum, have been studied by electrophysiological single-sensillum technique and interpreted in terms of a previously reported receptor-interaction model. The results indicate that the terminal methyl group, as well as the acetate group, interacts with highly complementary receptor sites. The terminal alkyl chain is suggested to interact with a hydrophobic "pocket" extending over the two methylene groups closest to the terminal methyl group. The amounts of stimulus actually released from the odor source have been studied. The results demonstrate the necessity to take differences of volatility into account in comparisons of electrophysiological data for compounds of different chain lengths. It is shown that relative vapor pressures may to a good approximation be employed to estimate correction factors.
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Introduction of methyl groups to acetate substituted chain of (Z)-5-decenyl acetate, a pheromone component of turnip moth,agrotis segetum: synthesis, single-sensillum recordings, and structure-activity relationships. J Chem Ecol 2013; 18:637-57. [PMID: 24253872 DOI: 10.1007/bf00987825] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/1991] [Accepted: 12/11/1991] [Indexed: 10/25/2022]
Abstract
Methyl-substituted analogs of (Z)-5-decenyl acetate, a pheromone component of the turnip moth,Agrotis segetum, have been synthesized and studied by electrophysiological single-sensillum recordings and molecular mechanics calculations [MM2(85)]. The analogs are monomethyl substituted in the 2, 3, 4, and 5 positions and geminally dimethyl substituted in the 2, 3, and 4 positions. The methyl groups have been employed as space probes to study the degree of steric complementarity between the acetate-substituted alkyl chain of the pheromone component and its receptor. The electrophysiological activities, interpreted in terms of a receptor interaction model, indicate significant steric repulsive interactions between the introduced methyl groups and the receptor. This implies a high degree of complementarity between the acetate-substituted alkyl chain of the natural pheromone component and its receptor.
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Enantiomers of methyl substituted analogs of (Z)-5-decenyl acetate as probes for the chirality and complementarity of its receptor inAgrotis segetum 1: Synthesis and structure-activity relationships. J Chem Ecol 2013; 19:459-84. [PMID: 24248950 DOI: 10.1007/bf00994319] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/1992] [Accepted: 10/21/1992] [Indexed: 10/25/2022]
Abstract
The enantiomers of analogs of (Z)-5-decenyl acetate, a pheromone component ofAgrotis segetum, substituted by a methyl group in the 2, 3, 4, 7, and 8 positions and dimethyl substituted in the 4,7 positions, have been synthesized and studied by an electrophysiological single-cell technique and by molecular mechanics calculations. The results demonstrate that the electrophysiological activity as well as the ability of the (Z)-5-decenyl acetate receptor to differentiate between enantiomers depends on the position of the methyl substituent. For analogs methyl substituted in the 2, 4, or 8 position, no differences in the activities of the enantiomers could be observed. In contrast, the enantiomers of the 3- and 7-methyl analogs display a significant difference in the activities, theR-enantiomers being more active than theS-enantiomers. From an analysis of the structure-activity results of the enantiomers of the 4,7-dimethyl-substituted analogs, the chiral sense of the alkylchain of the natural pheromone component on binding to its receptor could be deduced.
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Yu Y, Plettner E. Enantiomer and conformer recognition of (+) and (−)-disparlure and their analogs by the pheromone binding proteins of the gypsy moth, Lymantria dispar. Bioorg Med Chem 2013; 21:1811-22. [DOI: 10.1016/j.bmc.2013.01.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 01/11/2013] [Accepted: 01/18/2013] [Indexed: 01/02/2023]
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Myrick AJ, Park KC, Hetling JR, Baker TC. Real-time odor discrimination using a bioelectronic sensor array based on the insect electroantennogram. BIOINSPIRATION & BIOMIMETICS 2008; 3:046006. [PMID: 18997275 DOI: 10.1088/1748-3182/3/4/046006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Current trends in artificial nose research are strongly influenced by knowledge of biological olfactory systems. Insects have evolved over millions of years to detect and maneuver toward a food source or mate, or away from predators. The insect olfactory system is able to identify volatiles on a time scale that matches their ability to maneuver. Here, biological olfactory sense organs, insect antennae, have been exploited in a hybrid-device biosensor, demonstrating the ability to identify individual strands of odor in a plume passing over the sensor on a sub-second time scale. A portable system was designed to utilize the electrophysiological responses recorded from a sensor array composed of male or female antennae from four or eight different species of insects (a multi-channel electroantennogram, EAG). A computational analysis strategy that allows discrimination between odors in real time is described in detail. Following a training period, both semi-parametric and k-nearest neighbor (k-NN) classifiers with the ability to discard ambiguous responses are applied toward the classification of up to eight odors. EAG responses to individual strands in an odor plume are classified or discarded as ambiguous with a delay (sensor response to classification report) on the order of 1 s. The dependence of classification error rate on several parameters is described. Finally, the performance of the approach is compared to that of a minimal conditional risk classifier.
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Affiliation(s)
- A J Myrick
- Department of Bioengineering, University of Illinois at Chicago, SEO 232, MC 063, 851 South Morgan Street, Chicago, IL 60607-7052, USA
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Takanashi T, Ishikawa Y, Anderson P, Huang Y, Löfstedt C, Tatsuki S, Hansson BS. Unusual response characteristics of pheromone-specific olfactory receptor neurons in the Asian corn borer moth, Ostrinia furnacalis. ACTA ACUST UNITED AC 2007; 209:4946-56. [PMID: 17142683 DOI: 10.1242/jeb.02587] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Male moth pheromone-detecting receptor neurons are known to be highly specific and very sensitive. We investigated physiological and behavioral responses to female sex pheromone components in male Ostrinia furnacalis moths (Lepidoptera: Crambidae). Using recordings from a cut-sensillum technique, trichoid sensilla could be grouped into four physiological types (1-4), according to the response of receptor neurons to the two major pheromone components, (E)-12- and (Z)-12-tetradecenyl acetate (E12- and Z12-14:OAc). These types could subsequently be characterized as four subtypes (A-D) depending on neural responses to pheromone components from various sister species of O. furnacalis, (Z)-9-, (E)-11- and (Z)-11-tetradecenyl acetate. The peripheral pheromone detection system of O. furnacalis is different to that of other moths. A large majority of the neurons investigated responded to both of the two principal pheromone components. Dose-response and cross-adaptation studies showed that olfactory receptor neurons with large amplitude action potentials responded equally well to E12- and Z12-14:OAc in sensillum types 1-3. Field experiments showed that O. furnacalis males are sensitive to ratios of E12- and Z12-14:OAc and that (Z)-9-tetradecenyl acetate acts as a behavioral antagonist. O. furnacalis males thus display an unusual coding system for odors involved in sexual communication, mainly built on less specific neurons, but still have the ability to detect and respond to the correct female blend. We hypothesize that the pheromone detection system of O. furnacalis consists of two parts, where one is devoted to high sensitivity to Delta12 isomers of tetradecenyl acetate, E12- and Z12-14:OAc and the other to highly specific responses to the E12- or Z12-14:OAc. The unusual feature is thus that a large part of the system is devoted to sensitivity and only a minor part to selectivity. This could be explained by the fact that no other moth species are known to use E12- and/or Z12-14:OAc and that no strong selective pressure to increase selectivity between the isomers has been determined.
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Affiliation(s)
- Takuma Takanashi
- Division of Chemical Ecology, Department of Crop Science, Swedish University of Agricultural Sciences, SE-230 53 Alnarp, Sweden.
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Kan W, Zhang Z, Yang X, Fang Y, Xiao C. An analysis of structure fitting and bioactivity between sex pheromone of cotton bollworm,Helicoverpa armigera (Hübner) and its fluorinated analogs. CHINESE SCIENCE BULLETIN-CHINESE 2005. [DOI: 10.1007/bf03183655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Pesenti C, Viani F. The Influence of Fluorinated Molecules (Semiochemicals and Enzyme Substrate Analogues) on the Insect Communication System. Chembiochem 2004; 5:590-613. [PMID: 15122631 DOI: 10.1002/cbic.200300829] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Can the introduction of fluorine atoms affect the bioactivity of natural semiochemicals? Can fluorine contribute in the creation of specific enzyme inhibitors to interrupt or disrupt the insect communication system? The first step for the bioactivity of a molecule is interaction with the biological sensor. Hydrogen and fluorine are almost bioisosteric and the receptor site of the enzyme can still recognize and accept the fluoro analogue of its natural substrate. However, the peculiar electronegativity of the fluorine atom can affect the binding, absorption, and transport of the molecule. The differences in the molecule's electronic properties can lead to differences in the chemical interactions between the receptor and the fluorinated substrate. Fluorine introduction can modify the metabolic stability and pathway of the semiochemicals in many different ways. Fluorinated analogues can show synergism, inhibition, or hyperagonism effects on insect behaviors, that is, the activity of the nonfluorinated parent compounds can be mimicked, lost, or increased. In any case, the fluorinated molecules can interact with the bioreceptors in a new and disrupting way. The semiochemicals are olfactory substances: fluorine can affect their volatility or smell. Production of semiochemicals from exogenous substances, perception at antennal receptors, and processing of biological responses are the main steps of communication among insects. In the production step, the fluorinated molecules can interact with enzymes that catalyze the biosynthesis of the natural pheromones. In the perception step, fluorinated semiochemicals can interact with the olfactory receptor cells; this often leads to totally unpredictable behaviors. Fluorinated molecules have been developed as probes to elucidate the complex chemorecognition processes of insects. Many of these molecules have been tested to find highly effective behavior-modifying chemicals. New analogues have been synthesized to investigate the metabolic pathway of a pheromone molecule and many of them are promising disrupting agents. Despite such titanic research efforts, the results have often been random, rational trends in the induced behaviors have sometimes been impossible to find, and practical applications of the fluorinated semiochemicals are still uncertain.
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Affiliation(s)
- Cristina Pesenti
- Istituto di Chimica per il Riconoscimento Molecolare, Consiglio Nazionale delle Ricerche, Via Mancinelli 7, 20131 Milano, Italy
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Baker TC. Mechanism for saltational shifts in pheromone communication systems. Proc Natl Acad Sci U S A 2002; 99:13368-70. [PMID: 12374851 PMCID: PMC129676 DOI: 10.1073/pnas.222539799] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Thomas C Baker
- Department of Entomology, Iowa State University, 411 Science II, Ames, IA 50011, USA.
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Asymmetric dihydroxylation and one-pot epoxidation routes to (+)- and (−)-posticlure: a novel trans-epoxide as a sex pheromone component of Orgyia postica (Walker). Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00685-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Renou M, Guerrero A. Insect parapheromones in olfaction research and semiochemical-based pest control strategies. ANNUAL REVIEW OF ENTOMOLOGY 2000; 45:605-630. [PMID: 10761591 DOI: 10.1146/annurev.ento.45.1.605] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The possibility of disrupting the chemical communication of insect pests has initiated the development of new semiochemicals, parapheromones, which are anthropogenic compounds structurally related to natural pheromone components. Modification at the chain and/or at the polar group, isosteric replacements, halogenation or introduction of labeled atoms have been the most common modifications of the pheromone structure. Parapheromones have shown a large variety of effects, and accordingly have been called agonists, pheromone mimics, synergists and hyperagonists, or else pheromone antagonists, antipheromones and inhibitors. Pheromone analogues have been used in quantitative structure-activity relationship studies of insect olfaction, and from a practical point of view they can replace pheromones when these are costly to prepare or unstable under field conditions.
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Affiliation(s)
- M Renou
- INRA, Unité de Phytopharmacie et Médiateurs Chimiques, Versailles, France.
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Zhang ZB, Wang ZM, Wang YX, Liu HQ, Lei GX, Shi M. A facile synthetic method for chiral 1,2-epoxides and the total synthesis of chiral pheromone epoxides. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0957-4166(99)00082-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Gustavsson AL, Larsson MC, Hansson BS, Liljefors T. Enantiomers of cis- and trans-3-(4-propyl-cyclopent-2-enyl) propyl acetate. A study on the bioactive conformation and chiral recognition of a moth sex pheromone component. Bioorg Med Chem 1997; 5:2173-83. [PMID: 9459015 DOI: 10.1016/s0968-0896(97)00162-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The enantiomers of cis- and trans-3-(4-propyl-cyclopent-2-enyl) propyl acetate, which are conformationally constrained analogues of (Z)-5-decenyl acetate (1), a sex pheromone component of the turnip moth, Agrotis segetum, have been synthesized and tested using the electrophysiological single-sensillum technique. The analogues mimic a cisoid and transoid conformation of 1, respectively. In addition, the enantiomers of each of the cis- and trans-isomers are conformationally constrained analogues of enantiomeric cisoid and transoid conformations of 1. Thus, the compounds prepared and tested are well suited to investigate the nature of the bioactive conformation of the natural pheromone component 1 and the chiral sense of its interaction with the receptor. Electrophysiological single-sensillum recordings show that the activity of the most active cis-isomer, which has a (1S,4R)-configuration, is more than two orders of magnitude higher than that of the most active trans-isomer. Furthermore, the (1S,4R)-isomer is at least 100 times more active than its enantiomer. These results strongly support a previously proposed cisoid bioactive conformation of 1. Furthermore, the (1S,4R)-configuration of most active stereoisomer identifies the chiral sense of the interaction between the natural pheromone component 1 and its receptor.
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Affiliation(s)
- A L Gustavsson
- Center for Chemistry and Chemical Engineering, Lund University, Sweden
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Bestmann HJ, Roth KD, Rehefeld C, Leinemann B, Kern F, Vostrowsky O. Ab initio calculations on (Z)-5-decenyl acetate, a component of the pheromone complex of Agrotis segetum (Lepidoptera: Noctuidae) and electrophysiological studies with chain elongated analogues. Bioorg Med Chem 1996; 4:473-7. [PMID: 8733629 DOI: 10.1016/0968-0896(96)00028-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Conformational analyses of (Z)-5-decenylacetate, a sex pheromone component of the turnip moth, Agrotis segetum, and double unsaturated pheromone analogues 4 and 5 have been performed by ab initio calculations using Gaussian 92. Two minima were found for a cisoid and a transoid conformer, differing for 0.03 kcal/mol only. Conformational energies of diene analogues (5Z,7E)-5,7-decadienyl acetate (4) and (3E,5Z)-3,5,-decadienyl acetate (5) were determined for conformers required to mimic spatial relationships of the cisoid conformation of the natural pheromone 2. Finally, single sensillum recording studies were carried out with chain elongated C11- to C16-pheromone analogues 6.
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Affiliation(s)
- H J Bestmann
- Organic Chemistry Institute, University Erlangen-Nürnberg, Germany
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Jönsson S, Hansson BS, Liljefors T. Conformationally constrained analogues of (Z)-5-decenyl acetate, a pheromone component of Agrotis segetum. Bioorg Med Chem 1996; 4:499-504. [PMID: 8733633 DOI: 10.1016/0968-0896(96)00032-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Conformationally constrained analogues of (Z)-5-decenyl acetate (1), a pheromone component of the turnip moth, Agrotis segetum, have been synthesized and tested by using electrophysiological single-cell recordings. In the constrained analogues the terminal alkyl chain in 1 has been incorporated in a six-membered (3 and 4) or five-membered (6) ring system. These cycli compounds are also conformationally constrained analogues of the previously deduced bioactive conformations of the corresponding chain-elongated analogues 2 and 5. The electrophysiological activities of the constrained analogues are found to be significantly lower than that of the natural pheromone component 1, most probably due to steric repulsive interactions between the analogue and the receptor, and also lower than the activities of the corresponding chain-elongated analogues of 1. It is concluded that the flexibility of the terminal chains in 2 and 5 is essential for the possibility of the receptor to accommodate these parts of the chain-elongated analogues in their bioactive conformations.
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Affiliation(s)
- S Jönsson
- Department of Organic Chemistry, Chemical Center, Lund University, Sweden
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Alkyl ether and enol ether analogs of (Z)-5-decenyl acetate, a pheromone component of the turnip moth,Agrotis segetum: probing a proposed bioactive conformation for chain-elongated analogs. J Chem Ecol 1995; 21:815-32. [DOI: 10.1007/bf02033463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/1994] [Accepted: 03/01/1995] [Indexed: 11/27/2022]
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18
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Oxime ether analogs of sex pheromone components of turnip moth (Agrotis segetum Schiffermüller). J Chem Ecol 1994; 20:1063-73. [DOI: 10.1007/bf02059743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/1993] [Accepted: 12/29/1993] [Indexed: 11/24/2022]
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Electrophysiological and field activity of halogenated analogs of (E,E)-8,10-dodecadien-1-ol, the main pheromone component, in codling moth (Cydia pomonella L.). J Chem Ecol 1994; 20:489-503. [DOI: 10.1007/bf02059592] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/1993] [Accepted: 10/14/1993] [Indexed: 10/25/2022]
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20
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Structure-activity correlations among analogs of the currant clearwing moth pheromone. J Chem Ecol 1993; 19:735-50. [DOI: 10.1007/bf00985005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/1992] [Accepted: 11/30/1992] [Indexed: 10/25/2022]
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21
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Electrophysiological and behavioral responses of turnip moth males,Agrotis segetum to fluorinated pheromone analogs. J Chem Ecol 1993; 19:143-57. [DOI: 10.1007/bf00987479] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/1992] [Accepted: 09/09/1992] [Indexed: 10/25/2022]
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Bestmann HJ, Caihong W, Rehefeld C, Kern F, Leinemann B. Haben Pheromonrezeptoren, die gleiche oder ähnliche Signalmoleküle empfangen, gleiche oder ähnliche Struktur? Angew Chem Int Ed Engl 1992. [DOI: 10.1002/ange.19921040335] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Replacement of the terminal methyl group in a moth sex pheromone component by a halogen atom: Hydrophobicity and size effects on electrophysiological single-cell activities. J Chem Ecol 1991; 17:1381-97. [DOI: 10.1007/bf00983771] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/1990] [Accepted: 03/14/1991] [Indexed: 11/26/2022]
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24
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J�nsson S, Liljefors T, Hansson BS. Alkyl substitution in terminal chain of (Z)-5-decenyl acetate, a pheromone component of turnip moth,Agrotis segetum. Synthesis, single-sensillum recordings, and structure-activity relationships. J Chem Ecol 1991; 17:103-22. [DOI: 10.1007/bf00994425] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/1990] [Accepted: 08/20/1990] [Indexed: 10/26/2022]
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25
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Bengtsson M, Rauscher S, Arn H, Sun WC, Prestwich GD. Fluorine-substituted pheromone components affect the behavior of the grape berry moth. Cell Mol Life Sci 1990. [DOI: 10.1007/bf01936940] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Perfluorinated moth pheromones. J Chem Ecol 1990; 16:1761-78. [DOI: 10.1007/bf01020493] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/1989] [Accepted: 10/10/1989] [Indexed: 10/25/2022]
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27
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Fescemyer HW, Hanson FE. Male european corn borer,Ostrinia nubilalis (H�bner), antennal responses to analogs of its sex pheromone. J Chem Ecol 1990; 16:773-90. [DOI: 10.1007/bf01016488] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/1988] [Accepted: 05/01/1989] [Indexed: 10/25/2022]
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28
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Wei-Chuan S, Prestwich GD. Partially fluorinated analogs of (Z)-9-dodecenyl acetate: Probes for pheromone hydrophobiclty requirements. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)94631-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Alkylation epoxide rearrangement. Application to stereoselective synthesis of chiral pheromone epoxides. Tetrahedron Lett 1988. [DOI: 10.1016/s0040-4039(00)82468-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Dienic analogs of (Z)-5-decenyl acetate, a pheromone component of the turnip moth, Agrotis segetum: Synthesis, conformational analysis and structure-activity relationships. Bioorg Chem 1987. [DOI: 10.1016/0045-2068(87)90036-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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