Canthin-6-one alkaloids from Eurycoma longifolia

• Published in: Phytochemistry (Oxford) Vol. 35; no. 3; pp. 799 - 802
• Main Authors: Mitsunaga, Katsuyoshi, Koike, Kazuo, Tanaka, Tomoko, Ohkawa, Youko, Kobayashi, Yuko, Sawaguchi, Takako, Ohmoto, Taichi
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 01.02.1994; Elsevier
• Subjects: alkaloids; bark; Biochemistry & Molecular Biology; Biological and medical sciences; canthin-6-one alkaloids; chemical constituents of plants; Chemical constitution; Eurycoma longifolia; Fundamental and applied biological sciences. Psychology; Life Sciences & Biomedicine; medicinal plants; molecular conformation; Plant physiology and development; Plant Sciences; Science & Technology; Simaroubaceae; spectral analysis; wood; Simaroubaceae; canthin-6-one alkaloids; wood; Eurycoma longifolia; bark; EURYCOMA LONGIFOLIA; SIMAROUBACEAE; QUASSINOIDS; WOOD; BARK; AILANTHUS-ALTISSIMA SWINGLE; ROOTS; CANTHIN-6-ONE ALKALOIDS; CONSTITUENTS; Alkaloid; Wood; Molecular structure; Dicotyledones; Angiospermae; Bark; Isolation; Spermatophyta
• ISSN: 0031-9422; 1873-3700
• DOI: 10.1016/S0031-9422(00)90609-5

Five new canthin-6-one alkaloids, 9,10-dimethoxycanthin-6-one, 10-hydroxy-9-methoxycanthin-6-one, 11-hydroxy-10-methoxycanthin-6-one, 5,9-dimethoxycanthin-6-one and 9-methoxy-3-methylcanthin-5,6-dione were isolated from the bark and wood of Eurycoma longifolia, along with six known canthin-6-one alkaloids and two known β-carboline alkaloids. Their structures were determined from spectroscopic data and other chemical evidence.