1007364-30-8Relevant articles and documents
Structure-immunogenicity relationship of kresoxim-methyl regioisomeric haptens
Lopez-Moreno, Rosario,Mercader, Josep V.,Agullo, Consuelo,Abad-Somovilla, Antonio,Abad-Fuentes, Antonio
, p. 7361 - 7371 (2013)
Kresoxim-methyl was one of the two first strobilurins to be discovered, and nowadays it is widely used as an antifungal agent in crop protection. Because of its low molecular weight and negligible structural complexity, the generation of antibodies to kresoxim-methyl noticeably requires the preparation of functionalized haptens. In this study, the introduction of a hydrocarbon spacer arm at the aromatic moieties of the target molecule was carried out by a convergent strategy based on the Sonogashira cross-coupling reaction, and functionalized linkers of the same length were also tethered to the aliphatic toxophore group by the O-alkylation reaction. Evaluation of the immune response, in terms of antibody affinity, showed a differential behavior among five synthesized haptens whose sole dissimilarity was the derivatization site. The characteristic (methoxyimino)acetate moiety of strobilurins was revealed as the optimum linker position for high-affinity polyclonal and monoclonal antibody production. However, good monoclonal antibodies were isolated from mice immunized with a hapten carrying the linker at an opposite site, which otherwise generated a poor polyclonal response in rabbits. Site-heterology was confirmed as a feasible approach for the improvement of the apparent affinity, particularly with polyclonal antibodies. Several of the monoclonal antibodies generated in the context of this project could be proper binders for kresoxim-methyl immunosensing over different analytical platforms.
Methoxy acrylate compound containing triphenylphosphonium cations and synthesis method and application thereof
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Paragraph 0093-0096, (2019/10/01)
The invention discloses a technical field of agricultural fungicide preparation, particularly relates to a methoxy acrylate compound containing triphenylphosphonium cations and a synthesis method andapplication thereof. The general molecular formula I of
Identification and synthesis of major impurities formed during the synthesis of trifloxystrobin and kresoxim-methyl fungicides
Kamaraj, Pasumpon,Antao, Nakita,Singh, Apoorva,Satam, Vijay,Kadam, Subhash,Prabhu, Venkatesh M.,Hindupur, Rama Mohan,Pati, Hari N.
supporting information, p. 306 - 310 (2015/06/22)
During process development of Trifloxystrobin and Kresoxim-methyl fungicides, two impurities were identified. These impurities were isolated and characterized using LCMS, IR, 1H NMR, 13C NMR and elemental analysis. Structures of the
AN IMPROVED PROCESS FOR THE SYNTHESIS OF STROBILURIN FUNGICIDES VIZ TRIFLOXYSTROBIN AND KRESOXIM-METHYL
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, (2013/10/21)
The present invention relates to an improved process for the synthesis of E-isomer of compound of formula (5). It further relates to the conversion of formula (5), wherein R is H, to Intermediate (I) and subsequently to substantially pure Trifloxystrobin, compound of formula (I) in good yield.
Hapten synthesis and monoclonal antibody-based immunoassay development for the detection of the fungicide kresoxim-methyl
Mercader, Josep V.,Suarez-Pantaleon, Celia,Agullo, Consuelo,Abad-Somovilla, Antonio,Abad-Fuentes, Antonio
experimental part, p. 1545 - 1552 (2009/07/18)
Strobilurin fungicides have been increasingly used for fungus pest control since they were introduced in 1996. For pesticide residue detection, immunoassays constitute nowadays a valuable approach. This paper describes the synthesis of functionalized haptens of kresoxim-methyl, the production of monoclonal antibodies, and the development of enzyme-linked immunosorbent assays. On the one hand, a two-step conjugate-coated immunoassay was optimized using extended or short incubation times, with limits of detection of 0.4 ng/mL for the extended assay and 0.3 ng/mL for the rapid assay. On the other hand, an immunoassay was optimized following a procedure consisting of just one incubation step. This one-step assay had a limit of detection of 0.4 ng/mL. All of these assays showed a similar performance, with sensitivities well below common maximum residue limits for this pesticide (50 μg/kg) and lower than the detection limits of the usual chromatographic detection methods.