Tripetch KanchanapoomRyoji KasaiPhannipha ChumsriKazuo YamasakiHiroshima University Faculty of MedicineKhon Kaen UniversityMahidol University2018-09-072018-09-072001-08-01Phytochemistry. Vol.57, No.8 (2001), 1205-1208003194222-s2.0-0035426059https://repository.li.mahidol.ac.th/handle/20.500.14594/26388Three quassinoids, iandonosides A and B and iandonone, were isolated from the root of Eurycoma harmandiana, along with five known quassinoids, casteloside B, 13 β, 21-dihydroeurycomanone, chaparrinone, glaucarubolone and ailanquassin B as well as the coumarin, scopoletin. The structural elucidations were based on analyses of spectroscopic data. © 2001 Elsevier Science Ltd. All rights reserved.Mahidol UniversityAgricultural and Biological SciencesBiochemistry, Genetics and Molecular BiologyArticleSCOPUS10.1016/S0031-9422(01)00235-7