Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Quan-Lin Yu"'
Publikováno v:
Molecules, Vol 11, Iss 9, Pp 661-665 (2006)
A novel triterpene, 2α,3β,20,23-tetrahydroxyurs-28-oic acid (1), was isolated from the aerial part of Centella asiatica. Its structure was elucidated by spectroscopic methods, including 2D-NMR spectra. It displayed no activity against H
Externí odkaz:
https://doaj.org/article/3e749229996940c493b81270cb2dbc89
Publikováno v:
Molecules, Vol 11, Iss 9, Pp 661-665 (2006)
A novel triterpene, 2alpha,3beta,20,23-tetrahydroxyurs-28-oic acid (1), was isolated from the aerial part of Centella asiatica. Its structure was elucidated by spectroscopic methods, including 2D-NMR spectra. It displayed no activity against Hela and
Publikováno v:
Chinese Chemical Letters. 18:62-64
A new triterpene and a saponin, named 2α,3β,23-trihydroxyurs-20-en-28-oic acid ( 1 ) and 2α,3β,23-trihydroxyurs-20-en-28-oic acid O -α- l -rhamnopyranosyl-(1→4)- O -β- d -glucopyranosyl-(1→6)- O -β- d -glucopyranosyl ester ( 2 ), have been
Publikováno v:
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica. 32(12)
To study the chemical constituents from Centella asiatica.Chemical constituents were isolated by repeated column chromatography (Toyopearl HW-40C and HPLC) and their structures were elucidated on the basis of spectroscopic method.Five compounds were
Publikováno v:
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica. 32(6)
A HPLC-ELSD method was established for the simultaneous quantitative determination of asiaticoside in Centella asiatica extract.The column was packed with 5 m HIQ C18 stationary phase. The mobile phase consisted of acetonitrile-water, eluted in gradi
Publikováno v:
Acta Crystallographica Section E Structure Reports Online. 62:o2910-o2911
The title compound, C18H16O6·H2O, is a flavonol which was isolated from Cucubalus baccifer (L.). Intermolecular O—H...O and C—H...O hydrogen bonds link the molecules to form networks stacked along the a axis.
Publikováno v:
Acta Crystallographica: Section E. Jul2006, Vol. 62 Issue 7, po2910-o2911. 1p. 3 Diagrams, 1 Chart.