Plant constituents biologically active to insects. VI. Antifeedants for larvae of the yellow butterfly, Eurema hecabe mandarina, in Osmunda japonica. (2).
作者:Atsushi NUMATA、Chika TAKAHASHI、Ryoko FUJIKI、Eisaku KITANO、Akihiko KITAJIMA、Tsuruko TAKEMURA
DOI:10.1248/cpb.38.2862
日期:——
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-(β-D-glucopyranosyloxy)hexanoate. In the course of isolation of the antifeedants. a new glycoside, dihydroisoosmudalin (9), was isolated together with maltol β-D-glucopyranoside, 2-deoxy-L-ribopyranolactone, 5-hydroxymethyl·2-furfural and glycerin. The structure of 9 was elucidated as (4R, 5S)-5-(β-D-glucopyranosyloxy)hexan-4-olide on the basis of chemical and spectroscopic evidence.
从 Osmunda japonica THUNB.中分离出了三种针对黄蝶幼虫 Eurema hecabe mandarina DE L'ORZA 的抗寄生虫剂,经鉴定,它们分别是锇牡丹苷、寄生虫苷和 (3S, 5S)-5-hydroxy-3-(β-D-glucopyranosyloxy)hexanoate 甲基(3S, 5S)-5-hydroxy-3-(β-D-glucopyranosyloxy)hexanoate 。在分离抗飞扬剂的过程中,分离出了一种新的苷--二氢异牡荆苷(9),以及麦芽酚 β-D-吡喃葡萄糖苷、2-脱氧-L-核糖酸内酯、5-羟甲基-2-糠醛和甘油。根据化学和光谱证据,9 的结构被阐明为 (4R,5S)-5-(β-D-吡喃葡萄糖氧基)己烷-4-内酯。