Canthin-6-one and beta-carboline alkaloids from Eurycoma harmandiana.
Two alkaloids, canthin-6-one 9-O-beta-glucopyranoside and 7-hydroxy-beta-carboline 1-propionic acid, were isolated from the roots of Eurcoma harmandiana together with the five known canthin-6-one alkaloids, 9-hydroxycanthin-6-one, 9-methoxycanthin-6-one, 9,10-dimethoxycanthin-6-one, canthin-6-one and canthin-6-one N-oxide, and the two known beta-carboline alkaloids, beta-carboline 1-propionic acid and 7-methoxy-beta-carboline 1-propionic acid. Their structures were based on analyses of spectroscopic data.
Institute of Pharmaceutical Sciences, Faculty of Medicine, Hiroshima University, Japan.
T
T
Kanchanapoom
R
R
Kasai
P
P
Chumsri
Y
Y
Hiraga
K
K
Yamasaki
D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D002243:Carbolines / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010936:Plant Extracts / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013785:Thailand
D000470:Alkaloids; D002243:Carbolines; D010936:Plant Extracts