NEW INSECTICIDAL CYCLODEPSIPEPTIDES FROM THE FUNGUS ISARIA FELINA II. STRUCTURE ELUCIDATION OF ISARIINS B, C AND D

GÉRARD DEFFIEUX; DANIELLE MERLET; ROBERT BAUTE; GUY BOURGEOIS; MARIE-ANTOINETTE BAUTE; ARLETTE NEVEU

doi:10.7164/antibiotics.34.1266

NEW INSECTICIDAL CYCLODEPSIPEPTIDES FROM THE FUNGUS ISARIA FELINA

II. STRUCTURE ELUCIDATION OF ISARIINS B, C AND D

GÉRARD DEFFIEUX, DANIELLE MERLET, ROBERT BAUTE, GUY BOURGEOIS, MARIE-ANTOINETTE BAUTE, ARLETTE NEVEU

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JOURNAL FREE ACCESS

1981 Volume 34 Issue 10 Pages 1266-1270

DOI https://doi.org/10.7164/antibiotics.34.1266

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Abstract

Isariins B, C and D, isolated from a strain of Isaria felina, were shown to be cyclodepsipeptides constituted by a pentapeptide cyclized through a β-hydroxyacid. The nature of the latter and the sequence of the peptide were determined for each compound. Relations between insecticidal activity and structure of the depsipeptides were pointed out.

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