Glycosides of 14,15-seco- and 13,14:14,15-disecopregnanes from the roots of Tylophora tanakae.
Five new glycosides of 14,15-seco- and 13,14:15-diseco-type pregnanes, including a new pregnane, 2 alpha-hydroxyhirundigenin, were isolated, in addition to one known glycoside, cynatratoside B, from the roots of Tylophora tanakae Maxim. Their structures were elucidated by spectral and chemical means.
Abe
F
F
Faculty of Pharmaceutical Sciences, Fukuoka University, Japan.
Hirokawa
M
M
Yamauchi
T
T
Honda
K
K
Hayashi
N
N
Nishida
R
R
D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D018517:Plant Roots / Q000737:chemistry*; D011278:Pregnanes / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment
D006027:Glycosides; D011278:Pregnanes