Rare sulfated purine alkaloid glycosides from Bruchidius dorsalis pupal case

Publication date: February 2020Source: Phytochemistry Letters, Volume 35Author(s): Yuri Uyama, Emi Ohta, Yui Harauchi, Tatsuo Nehira, Hisashi Ômura, Hiroyuki Kawachi, Aya Imamura-Jinda, Mylene M. Uy, Shinji OhtaAbstractThree 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.Graphical abstract

Source: Phytochemistry Letters - November 9, 2019 Category: Chemistry Source Type: research