[Separation and identification of active constituents of Paris vietnamensis].
OBJECTIVE
To study the anti-tumor bioactive steroid saponins of Paris vietnamensis (Takht.).


METHODS
The constituents were isolated and purified by chromatography and their structures were identified by spectral analysis and physicochemical properties. The cytotoxic bioactivities of the constituents were determined by MTT.


RESULTS
Eleven compounds were obtained and identified as 3beta, 5alpha,6alpha-trihydroxy-7(8)-en-isospirostanol-3-O-beta-D-glucopyranosyl(1-->3) [alpha-L-rhamnopyranosyl(1-->2)]-beta-D-glucopyranoside (1), which was named as parisvietnaside A, 25 (R) diosgenin-3-O-alpha-L-arabinofuranosyl(1-->4)-beta-D-glucopyranoside (2), 25(R) diosgenin-3-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D-glucopyranoside (3), 25 (R) diosgenin-3-O-alpha-L-arabinofuranosyl (1-->4) [alpha-L-rhamnopyranosyl (1-->2)]-beta-D-glucopyranoside (4), 25 (R) diosgenin-3-O-beta-D-glucopyranosyl (1-->3) [alpha-L-rhamnopyranosyl (1-->2)]-beta-D-glucopyranoside (5), 25 (R) diosgenin-3-O-alpha-L-rhamnopyranosyl (1-->4)-alpha-L-rhamnopyranosyl(1-->4) [alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (6), 25 (R) pennogenin-3-O-alpha-L-arabinofuranosyl(1-->4)-beta-D-glucopyranoside (7), 25 (R) pennogenin-3-O-alpha-L-rhamnopyranosyl (1-->2)-beta-D-glucopyranoside (8), 25 (R) pennogenin-3-O-alpha-L-arabinofuranosyl (1-->4) [alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (9), 25 (R) pennogenin-3-O-beta-D-glycopyranosyl (1-->3) [alpha-L-rhamnopyranosyl(1-->2)-beta-D-glucopyranoside (10) and 25 (R) pennogenin-3-O-alpha-L-rhamnopyranosyl (1-->4)-alpha-L-rhamnopyranosyl(1-->4) [alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (11). Some constituents had cytotoxic bioactivities.


CONCLUSIONS
Compound 1 is a new spirostanol saponin, and compounds 2, 3, 6-11 were obtained from Paris vietnamensis (Takht.) for the first time. Compounds 3, 4, 6, 8 had cytotoxic bioactivities against tumor cells HepG2 and SGC-7901.
Huang
Yun
Y
Department of Pharmacognosy, Hebei Medical Universty, Shijiazhuang, China.
Cui
Li-jian
LJ
Wang
Qiang
Q
Ye
Wen-cai
WC
D000230:Adenocarcinoma / Q000473:pathology; D006528:Carcinoma, Hepatocellular / Q000473:pathology; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D006801:Humans; D019668:Liliaceae / Q000737:chemistry*; D008113:Liver Neoplasms / Q000473:pathology; D008968:Molecular Conformation; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D013274:Stomach Neoplasms / Q000473:pathology
C523479:25(R) diosgenin-3-O-alpha-L-rhamnopyranosyl(1-2)-beta-D-glucopyranoside; D012503:Saponins; C523480:parisvietnaside A