Bioactive saponins and glycosides. XXV. Acylated oleanane-type triterpene saponins from the seeds of tea plant (Camellia sinensis).
Seven new acylated oleanane-type triterpene oligoglycosides, theasaponins A(4) (1), A(5) (2), C(1) (3), E(8) (4), E(9) (5), G(1) (6), and H(1) (7), were isolated from the seeds of Japanese tea plant (Camellia sinensis). The structures of 1-7 were elucidated on the basis of chemical and physicochemical evidence.
Yoshikawa
Masayuki
M
Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8412, Japan. shoyaku@mb.kyoto-phu.ac.jp
Morikawa
Toshio
T
Nakamura
Seikou
S
Li
Ning
N
Li
Xian
X
Matsuda
Hisashi
H
D000215:Acylation; D028241:Camellia sinensis / Q000737:chemistry* / Q000196:embryology; D006027:Glycosides / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry; D012503:Saponins / Q000032:analysis*; D012639:Seeds / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D014315:Triterpenes / Q000032:analysis*
D006027:Glycosides; D012503:Saponins; D014315:Triterpenes; C413246:oleanane; D009828:Oleanolic Acid