ALNUSERRUDIOLONE, A NEW C31-DAMMARANE-TYPE TRITERPENE FROMALNUS SERRULATOIDESCALL.
نویسندگان
چکیده
منابع مشابه
Dammarane-type triterpene saponins from the flowers of Panax notoginseng.
Four new dammarane-type triterpene saponins named floranotoginsenosides A (1), B (2), C (3) and D (4), together with five known triterpene saponins, were isolated from the flowers of Panax notoginseng. Their structures were elucidated on the basis of spectral and chemical evidence.
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BACKGROUND Panax ginseng has been used as Korean medicine for various diseases. It has antioxidant, hypotensive, sedative, analgesic, and endocrine activities. Dammarane-type triterpenes from the plant have various beneficial effects. METHODS A dammarane-type triterpene saponin was isolated from P. ginseng root through chromatography such as repeated column chromatography and medium pressure ...
متن کاملSix new dammarane-type triterpene saponins from the leaves of Panax ginseng.
Six new minor saponins, together with known ginsenosides, were isolated from the leaves of Panax ginseng. The new saponins were named as ginsenoside-Rh5, -Rh6, -Rh7 -Rh8, -Rh9 and -Rg7, and their structures were elucidated on the basis of chemical and physicochemical evidence to be as follows: ginsenoside-Rh5: 3beta,6alpha,12beta,24zeta-tetrahydroxy-dammar-20(22),25-diene 6-O-beta-D-glucopyrano...
متن کاملNew dammarane-type glycosides from the roots of Gynostemma pentaphyllum.
Twelve new dammarane-type glycosides ( 1- 12) were isolated from the ethanol extract from the roots of a wild-type of Gynostemma pentaphyllum. The structures of the compounds were elucidated by 1D and 2D NMR spectroscopic analysis as well as by chemical degradation. The compounds contained six structurally diverse aglycons similar to those of the reported ginseng saponins with differences in th...
متن کامل3-epi-Dammarenediol II 1.075 hydrate: a dammarane triterpene from the bark of Aglaia eximia
The title dammarane tritepene, 3α,20(S)-dihy-droxy-dammar-24-ene, which crystallized out in a hydrated form, C(30)H(52)O(2).1.075H(2)O, was isolated from the Aglaia eximia bark. The three cyclo-hexane rings adopt chair conformations. The cyclo-pentane has an envelope conformation with the quaternary C at position 14 as the flap atom with the maximum deviation of 0.288 (2) Å. The methyl-heptene ...
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ژورنال
عنوان ژورنال: Chemistry Letters
سال: 1974
ISSN: 0366-7022,1348-0715
DOI: 10.1246/cl.1974.971