Three new sulfated isoguanine alkaloid glycosides, locustoside A disulfate (1), saikachinoside B disulfate (2), and saikachinoside A trisulfate (3), have been isolated from the pupal case of the wild bruchid seed beetle Bruchidius dorsalis (Chrysomelidae, Bruchinae) infesting the seed of Gleditsia japonica Miquel (Fabaceae) along with the known compounds 9–11. The structures of the new compounds were determined through spectroscopic data and X-ray crystallographic analysis. The isolated compounds were evaluated for their inhibitory activity against starfish embryogenesis.

中文翻译：

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背BruBruchidius up病例中的稀有硫酸化嘌呤生物碱苷

从野生布鲁氏种子甲虫背果Bruchidius dorsalis（Chrysomelidae，Bruchinae）的the中分离出了三种新的硫酸化异鸟嘌呤生物碱糖苷：二硫化亚硫酸铜苷A（1），七硫酸二甙皂苷B和三硫酸化皂苷A（3）。的种子山皂角米克尔（蝶形花科）与已知的化合物一起9 - 11。通过光谱数据和X射线晶体学分析确定了新化合物的结构。评价分离的化合物对海星胚胎发生的抑制活性。