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Plant constituents biologically active to insects. VI. Antifeedants for larvae of the yellow butterfly, Eurema hecabe mandarina, in Osmunda japonica. (2).
- Source :
-
Chemical & pharmaceutical bulletin [Chem Pharm Bull (Tokyo)] 1990 Oct; Vol. 38 (10), pp. 2862-5. - Publication Year :
- 1990
-
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.
Details
- Language :
- English
- ISSN :
- 0009-2363
- Volume :
- 38
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- Chemical & pharmaceutical bulletin
- Publication Type :
- Academic Journal
- Accession number :
- 2076573
- Full Text :
- https://doi.org/10.1248/cpb.38.2862