title: Plant constituents biologically active to insects. VI. Antifeedants for larvae of the yellow butterfly, Eurema hecabe mandarina, in Osmunda japonica. (2).
abstract: Three antifeedants for larvae of the yellow butterfly, Eurema hecabe mandarina de l'Orza, were isolated from Osmunda japonica Thunb. and identified as osmundalin, parasorboside and methyl (3S,5S)-5-hydroxy-3-(beta-D-glucopyranosyloxy)hexanoate. In the course of isolation of the antifeedants, a new glycoside, dihydroisoosmudalin (9), was isolated together with maltol beta-D-glucopyranoside, 2-deoxy-L-ribopyranolactone, 5-hydroxymethyl.2-furfural and glycerin. The structure of 9 was elucidated as (4R,5S)-5-(beta-D-glucopyranosyloxy)hexan-4-olide on the basis of chemical and spectroscopic evidence.
authors.affiliation: Osaka University of Pharmaceutical Sciences, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Numata
authors.forename: C
authors.initials: C
authors.lastname: Takahashi
authors.forename: R
authors.initials: R
authors.lastname: Fujiki
authors.forename: E
authors.initials: E
authors.lastname: Kitano
authors.forename: A
authors.initials: A
authors.lastname: Kitajima
authors.forename: T
authors.initials: T
authors.lastname: Takemura
mesh_terms: D000818:Animals; D005247:Feeding Behavior / Q000187:drug effects*; D007306:Insecticides / Q000494:pharmacology*; D007814:Larva; D007915:Lepidoptera / Q000502:physiology*; D010944:Plants / Q000032:analysis*
chemical_list: D007306:Insecticides