Alisolide, alisols O and P from the rhizome of Alisma orientale.
A nor-protostane, alisolide (1), a rearranged protostane, alisol O (2), and a 2,3-seco-protostane triterpene, alisol P (3), were isolated from the rhizomes of Alisma orientale, along with eight known protostane triterpenes. The structures were elucidated to be (17S)-3,11-dioxo-23-nor-protost-12-en-23(17)-olide, 3-oxo-11beta,23-dihydroxy-24,24-dimethyl-26,27-dinorprotost-13(17)-en-25-oic acid, and (20R,23S,24R)-23,24,25-trihydroxy-2,3-seco-protost-13(17)-en-3-oic acid 2,11beta-lactone, respectively, by interpretation of spectroscopic data.
School of Chinese Medicine, The Chinese University of Hong Kong, Hong Kong.
Ming
M
Zhao
Li-Jia
LJ
Xu
Chun-Tao
CT
Che
D034902:Alisma / Q000737:chemistry*; D002783:Cholestenones / Q000737:chemistry*; D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D027343:Rhizome / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry*
C515797:24-hydroxyprotosta-11,13-diene 24-acetate; D002783:Cholestenones; D014315:Triterpenes; C528610:alisol P; C528609:alisolide