title: Destruxin analogs: variations of the alpha-hydroxy acid side chain.
abstract: This work describes the synthesis of three destruxin E cyclodepsipeptidic analogs. These compounds have an identical amino acid sequence but differ by the nature of the hydroxy acid residue with is 2-hydroxy-3-phenylpropionic (Hpp), 2-hydroxy-5-trimethylsilyl-4-pentynoic (Hpy-TMS) and 2-hydroxy-4-pentynoic (Hpy) acid, respectively. The insecticidal properties on the Galleria mellonella larvae (paralysis and lethal effect) of these analogs are presented in comparison with the natural destruxin E. All these compounds have toxic effects, the most potent being Hpy that induces the same effect as destruxin E.
authors.affiliation: UPRESA-CNRS 5075, Laboratoire des Aminoacides, Peptides et Protéines Université Montpellier II, France.
authors.forename: F
authors.initials: F
authors.lastname: Cavelier
authors.forename: R
authors.initials: R
authors.lastname: Jacquier
authors.forename: J L
authors.initials: JL
authors.lastname: Mercadier
authors.forename: J
authors.initials: J
authors.lastname: Verducci
authors.forename: M
authors.initials: M
authors.lastname: Traris
authors.forename: A
authors.initials: A
authors.lastname: Vey
mesh_terms: D000818:Animals; D047630:Depsipeptides; D005656:Fungal Proteins; D005658:Fungi / Q000737:chemistry; D007306:Insecticides / Q000138:chemical synthesis* / Q000737:chemistry* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009036:Moths; D010455:Peptides / Q000138:chemical synthesis / Q000737:chemistry / Q000633:toxicity; D010456:Peptides, Cyclic / Q000737:chemistry* / Q000494:pharmacology; D013237:Stereoisomerism
chemical_list: D047630:Depsipeptides; D005656:Fungal Proteins; D007306:Insecticides; D010455:Peptides; D010456:Peptides, Cyclic; C040425:destruxin E