60407-57-0Relevant academic research and scientific papers
Triterpenoid saponins and sapogenins from Vaccaria segetalis
Jia, Zhonghua,Koike, Kazuo,Kudo, Momoe,Li, Hongyu,Nikaido, Tamotsu
, p. 529 - 536 (1998)
Four new triterpenoid saponins, vaccarosides E, F, G and H were isolated from the seeds of Vaccaria segetalis and were respectively defined to be 3- O-β-D-galactopyranosyl-(1 → 2)-β-D-glucuronopyranosyl] quillaic acid 28- O-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-[α-L- arabinofuranosyl-(1 → 3)]-β-D-4-O-acetylfucopyranoside; 3-O-[β-D- galactopyranosyl-(1 → 2)-β-D-glucuronopyranosyl] 3β,4α,16α-trihydroxy- 23-norolean-12-en-28-oic acid 28-O-β-D-xylopyranosyl-(1 → 4)-α-L- rhamnopyranosyl-(1 → 2)-[α-L-arabinofuranosyl-(1 → 3)]-β-D-4-O- acetylfucopyranoside; 3-O-[β-D-galactopyranosyl-(1 → 2)-β-D- glucuronopyranosyl] gypsogenin 28-O-β-D-xylopyranosyl-(1 → 4)-α-L- rhamnopyranosyl-(1 → 2)-[α-L-arabinofuranosyl-(1 → 3)]-β-D-4-O- acetylfucopyranoside; and 3-O-[β-D-galactopyranosyl-(1 → 2)-β-D- glucuronopyranosyl] 3β,4α-dihydroxy-23-norolean-12-en-28-oic acid 28-O-β- D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-[α-L- arabinofuranosyl-(1 → 3)]-β-D-4-O-acetylfucopyranoside. Their structures were established on the basis of extensive NMR (DEPT, COSY, HOHAHA, HETCOR, HMBC AND NOESY), FAB-MS and ESI-MS studies as well as chemical strategies and enzymatic degradation. The new aglycones of two of the saponins have been designated as segetalic acid and vaccaric acid, respectively.
A TRITERPENOID SAPONIN FROM THLADIANTHA HOOKERI VAR. PENTADACTYLA
Nie, Rui-Lin,Tanaka, Takahiro,Miyakoshi, Masazumi,Kasai, Ryoji,Morita, Toshinobu,et. al.
, p. 1711 - 1716 (2007/10/02)
A new triterpenoid saponin was isolated from the tubers of Thladiantha hookeri C.B.Clarke var. pentadactyla in a high yield (9.7percent).On the basis of chemical and spectral evidence, the structure was determined as β-xylopyranosyl-(1->3)-β-xylopyranosyl-(1->4)-α-rhamnopyranosyl-(1->2)-β-xylopyranosyl ester of 3-O-β-galactopyranosyl-(1->2)-β-glucuronopyranosyl-gypsogenin.The solubilizing effect of this saponin is also described.Key Word Index- Thladiantha hookeri var. pentadactyla; Cucurbitaceae; Wu-ye-chi-pa; Chinese folk medicine; gypsogenin.
