Antifeedant and Insecticidal Activity of Quassinoids against the Diamondback Moth (Plutella xylostella) and Structure-Activity Relationships

Masayuki Daido; Nobuhiro Ohno; Kazunori Imamura; Narihiko Fukamiya; Makoto Hatakoshi; Hiroko Yamazaki; Kiyoshi Tagahara; Kuo-Hsiung Lee; Masayoshi Okano

doi:10.1271/bbb.59.974

Masayuki Daido, Nobuhiro Ohno, Kazunori Imamura, Narihiko Fukamiya, Makoto Hatakoshi, Hiroko Yamazaki, Kiyoshi Tagahara, Kuo-Hsiung Lee, Masayoshi Okano

Author information

Masayuki Daido
Nobuhiro Ohno
Kazunori Imamura
Narihiko Fukamiya
Makoto Hatakoshi
Hiroko Yamazaki
Kiyoshi Tagahara
Kuo-Hsiung Lee
Masayoshi Okano
Author's Organization：
Department of Interdisciplinary Studies on Natural Environment, Faculty of Integrated Arts and Sciences, Hiroshima University
Department of Interdisciplinary Studies on Natural Environment, Faculty of Integrated Arts and Sciences, Hiroshima University
Department of Interdisciplinary Studies on Natural Environment, Faculty of Integrated Arts and Sciences, Hiroshima University
Department of Interdisciplinary Studies on Natural Environment, Faculty of Integrated Arts and Sciences, Hiroshima University
Agricultural Chemicals Research Laboratory, Sumitomo Chemical Co. Ltd.
Agricultural Chemicals Research Laboratory, Sumitomo Chemical Co. Ltd.
Faculty of Pharmaceutical Sciences, Kobe Pharmaceutical University
Natural Products Laboratory, Division of Medicinal Chemistry and Natural Products, School of Pharmacy, University of North Carolina
Department of Interdisciplinary Studies on Natural Environment, Faculty of Integrated Arts and Sciences, Hiroshima University

JOURNAL FREE ACCESS

1995 Volume 59 Issue 6 Pages 974-979

DOI https://doi.org/10.1271/bbb.59.974

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Abstract

Four semi-synthetic and fourteen quassinoids were tested for their antifeedant and insecticidal activity against 3rd instarlarvae of the diamondback moth (Plutella xylostella). In this quassinoid series, isobrucein-B was the most potent compound in both assays. Chemical conversion of the methoxy and/or methylenedioxy groups in the A and C rings to hydroxy groups among these quassinoids resulted in decreased activity.

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