Title
Rare sulfated purine alkaloid glycosides from Bruchidius dorsalis pupal case
Author
Yuri Uyama, Emi Ohta, Yui Harauchi, Tatsuo Nehira, Hisashi Ômura, Hiroyuki Kawachi, Aya Imamura-Jinda, Mylene M. Uy, Shinji Ohta
Year
2020
Journal
Phytochemistry Letters
Abstract
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.
Instrument
V-630, J-725
Keywords
Circular dichroism, Absolute configuration, Absorption, Quantitation, Natural products, Biochemistry