Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship
Currently, the use of synthetic pesticides is the main method of plant protection applied in agri- and horticulture. However, its excessive use leads to the development of pesticide resistance, a contamination of the environment, toxicity to non-target organisms, and risks for human health. With the ultimate aim of contributing to the develop of a more sustainable pest management, we used the natural product germacrone (compound 1), reported to possess significant insecticidal activity, as starting material for the generation of molecular diversity (2–24). Some of the generated derivatives are natural compounds, such as 1,10-epoxygermacrone (2), 4,5-epoxygermacrone (3), gajutsulactone A (7), germacrol (11), isogermacrone (14), 9-hydroxyeudesma-3,7(11)dien-6-one (19), eudesma-4,7(11),dien-8-one (20), eudesma-3,7(11)-dien-8-one (21) and eudesma-4(15),7(11)-dien-8-one (22). Compounds, 7,11-9,10-diepoxigermacr-4,5-en-8-ol (17), 7,11-epoxieudesma-4,7(11)-dien-8-one (23) and 7,11-epoxieudesma-3,7(11)-dien-8-one (24) are described for the first time. The biocidal activity of most of these compounds was assayed against the tick Hyalomma lusitanicum. The acaricidal effects of compound 24 were four times higher than that of germacrone (1). Compound 2 is an insect antifeedant a thousand times more potent than germacrone against Rhopalosiphum padi, which makes this substance a promising selective antifeedant against this cereal pest.
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Multidisciplinary Digital Publishing Institute
2019-08-09
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Subjects: | Natural products, Organic synthesis, Bioactive compounds, Insecticidal, Ixodicidal, |
Online Access: | http://hdl.handle.net/10261/188974 http://dx.doi.org/10.13039/501100003329 |
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dig-ica-es-10261-1889742021-12-28T15:35:51Z Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship Galisteo Pretel, Alberto Pérez del Pulgar, Helena Guerrero de León, Estela López-Pérez, José Luis Olmeda García, Ángeles Sonia González-Coloma, Azucena Barrero, Alejandro F. Quílez del Moral, José Francisco Ministerio de Economía y Competitividad (España) Natural products Organic synthesis Bioactive compounds Insecticidal Ixodicidal Currently, the use of synthetic pesticides is the main method of plant protection applied in agri- and horticulture. However, its excessive use leads to the development of pesticide resistance, a contamination of the environment, toxicity to non-target organisms, and risks for human health. With the ultimate aim of contributing to the develop of a more sustainable pest management, we used the natural product germacrone (compound 1), reported to possess significant insecticidal activity, as starting material for the generation of molecular diversity (2–24). Some of the generated derivatives are natural compounds, such as 1,10-epoxygermacrone (2), 4,5-epoxygermacrone (3), gajutsulactone A (7), germacrol (11), isogermacrone (14), 9-hydroxyeudesma-3,7(11)dien-6-one (19), eudesma-4,7(11),dien-8-one (20), eudesma-3,7(11)-dien-8-one (21) and eudesma-4(15),7(11)-dien-8-one (22). Compounds, 7,11-9,10-diepoxigermacr-4,5-en-8-ol (17), 7,11-epoxieudesma-4,7(11)-dien-8-one (23) and 7,11-epoxieudesma-3,7(11)-dien-8-one (24) are described for the first time. The biocidal activity of most of these compounds was assayed against the tick Hyalomma lusitanicum. The acaricidal effects of compound 24 were four times higher than that of germacrone (1). Compound 2 is an insect antifeedant a thousand times more potent than germacrone against Rhopalosiphum padi, which makes this substance a promising selective antifeedant against this cereal pest. This research was funded by Grant CTQ-2015-64049-C3-3-R/CTQ2015-64049-C3-1-R; MINISTERIO DE ECONOMÍA Y COMPETITIVIDAD, Spain (MINECO/FEDER). Peer reviewed 2019-08-23T07:06:03Z 2019-08-23T07:06:03Z 2019-08-09 2019-08-23T07:06:03Z artículo http://purl.org/coar/resource_type/c_6501 Molecules 24(16): 2898 (2019) http://hdl.handle.net/10261/188974 10.3390/molecules24162898 1420-3049 http://dx.doi.org/10.13039/501100003329 31404973 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2015-64049-C3-3-R info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2015-64049-C3-1-R Publisher's version https://doi.org/10.3390/molecules24162898 Sí open Multidisciplinary Digital Publishing Institute |
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Natural products Organic synthesis Bioactive compounds Insecticidal Ixodicidal Natural products Organic synthesis Bioactive compounds Insecticidal Ixodicidal |
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Natural products Organic synthesis Bioactive compounds Insecticidal Ixodicidal Natural products Organic synthesis Bioactive compounds Insecticidal Ixodicidal Galisteo Pretel, Alberto Pérez del Pulgar, Helena Guerrero de León, Estela López-Pérez, José Luis Olmeda García, Ángeles Sonia González-Coloma, Azucena Barrero, Alejandro F. Quílez del Moral, José Francisco Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship |
description |
Currently, the use of synthetic pesticides is the main method of plant protection applied in agri- and horticulture. However, its excessive use leads to the development of pesticide resistance, a contamination of the environment, toxicity to non-target organisms, and risks for human health. With the ultimate aim of contributing to the develop of a more sustainable pest management, we used the natural product germacrone (compound 1), reported to possess significant insecticidal activity, as starting material for the generation of molecular diversity (2–24). Some of the generated derivatives are natural compounds, such as 1,10-epoxygermacrone (2), 4,5-epoxygermacrone (3), gajutsulactone A (7), germacrol (11), isogermacrone (14), 9-hydroxyeudesma-3,7(11)dien-6-one (19), eudesma-4,7(11),dien-8-one (20), eudesma-3,7(11)-dien-8-one (21) and eudesma-4(15),7(11)-dien-8-one (22). Compounds, 7,11-9,10-diepoxigermacr-4,5-en-8-ol (17), 7,11-epoxieudesma-4,7(11)-dien-8-one (23) and 7,11-epoxieudesma-3,7(11)-dien-8-one (24) are described for the first time. The biocidal activity of most of these compounds was assayed against the tick Hyalomma lusitanicum. The acaricidal effects of compound 24 were four times higher than that of germacrone (1). Compound 2 is an insect antifeedant a thousand times more potent than germacrone against Rhopalosiphum padi, which makes this substance a promising selective antifeedant against this cereal pest. |
author2 |
Ministerio de Economía y Competitividad (España) |
author_facet |
Ministerio de Economía y Competitividad (España) Galisteo Pretel, Alberto Pérez del Pulgar, Helena Guerrero de León, Estela López-Pérez, José Luis Olmeda García, Ángeles Sonia González-Coloma, Azucena Barrero, Alejandro F. Quílez del Moral, José Francisco |
format |
artículo |
topic_facet |
Natural products Organic synthesis Bioactive compounds Insecticidal Ixodicidal |
author |
Galisteo Pretel, Alberto Pérez del Pulgar, Helena Guerrero de León, Estela López-Pérez, José Luis Olmeda García, Ángeles Sonia González-Coloma, Azucena Barrero, Alejandro F. Quílez del Moral, José Francisco |
author_sort |
Galisteo Pretel, Alberto |
title |
Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship |
title_short |
Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship |
title_full |
Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship |
title_fullStr |
Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship |
title_full_unstemmed |
Germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship |
title_sort |
germacrone derivatives as new insecticidal and acaricidal compounds: a structure-activity relationship |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019-08-09 |
url |
http://hdl.handle.net/10261/188974 http://dx.doi.org/10.13039/501100003329 |
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