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Guy A, Delly S, Galano JM, Durand T, Oger C. Collective Total Synthesis of Ecklonialactones, Eiseniachlorides and Analogs. Chemistry 2024:e202401632. [PMID: 38770615 DOI: 10.1002/chem.202401632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/16/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
Ecklonialactones, Eiseniachlorides, and Egregiachlorides are synthesized in living organisms via the lipoxygenase-mediated oxidation of polyunsaturated fatty acids. Originally isolated and identified from brown seaweed (Ecklonia stolonifera, Eisenia bicyclis, and Egregia menziesii), and later replicated on milligram scale through chemical synthesis, the full biological activities of these compounds remain to be elucidated. To bridge this gap in knowledge, we propose a unified methodology to synthesize the 14-membered macrocyclic structures of Ecklonialactones, Eiseniachlorides and analogs using a versatile and convergent approach. This study delineates the synthesis of Ecklonialactone A, B, C, D, and Eiseniachlorides A and B, as well as ent-Ecklonialactone B, 16-epi-Ecklonialactone B and 12,13-diepi-Ecklonialactone B.
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Affiliation(s)
- Alexandre Guy
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM., 1919 route de Mende, 34293, Montpellier, France
| | - Shanice Delly
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM., 1919 route de Mende, 34293, Montpellier, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM., 1919 route de Mende, 34293, Montpellier, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM., 1919 route de Mende, 34293, Montpellier, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron, IBMM, Université de Montpellier, CNRS, ENSCM., 1919 route de Mende, 34293, Montpellier, France
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Toporkova YY, Smirnova EO, Gorina SS. Epoxyalcohol Synthase Branch of Lipoxygenase Cascade. Curr Issues Mol Biol 2024; 46:821-841. [PMID: 38248355 PMCID: PMC10813956 DOI: 10.3390/cimb46010053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
Oxylipins are one of the most important classes of bioregulators, biosynthesized through the oxidative metabolism of unsaturated fatty acids in various aerobic organisms. Oxylipins are bioregulators that maintain homeostasis at the cellular and organismal levels. The most important oxylipins are mammalian eicosanoids and plant octadecanoids. In plants, the main source of oxylipins is the lipoxygenase cascade, the key enzymes of which are nonclassical cytochromes P450 of the CYP74 family, namely allene oxide synthases (AOSs), hydroperoxide lyases (HPLs), and divinyl ether synthases (DESs). The most well-studied plant oxylipins are jasmonates (AOS products) and traumatin and green leaf volatiles (HPL products), whereas other oxylipins remain outside of the focus of researchers' attention. Among them, there is a large group of epoxy hydroxy fatty acids (epoxyalcohols), whose biosynthesis has remained unclear for a long time. In 2008, the first epoxyalcohol synthase of lancelet Branchiostoma floridae, BfEAS (CYP440A1), was discovered. The present review collects data on EASs discovered after BfEAS and enzymes exhibiting EAS activity along with other catalytic activities. This review also presents the results of a study on the evolutionary processes possibly occurring within the P450 superfamily as a whole.
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Affiliation(s)
- Yana Y. Toporkova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, P.O. Box 261, 420111 Kazan, Russia; (E.O.S.); (S.S.G.)
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