New triterpene and antibacterial labdenoic acid derivatives from Moldenhawera nutans
نویسندگان
چکیده
منابع مشابه
A new flavonol glycoside derivative from leaves of Moldenhawera nutans.
The ethyl acetate extract of leaves of Moldenhawera nutans Queiroz & Alkin (Leguminosae) furnished, besides methyl gallate and gallic acid, the flavonols named laricetrin, laricetrin 3-glucoside and laricetrin 3-galactoside as well as the new one named laricetrin 5-galloyl-3-beta-D-xylopyranoside. It also was isolated from the hexane extract: beta-sitosterol, lupenone, beta-amyrinone, alpha-amy...
متن کاملSix New Triterpene Derivatives from Aralia chinensis Var. dasyphylloides.
Aralia chinensis var. dasyphylloides is widely distributed in China and used as a traditional herbal medicine for the treatment of digestive and immune system diseases. The present study aimed to search for novel oleanolic-type triterpenoids in low-polarity fractions. Six new triterpene derivatives (1-6), together with two known compounds were isolated from the barks of A. chinensis var. dasyph...
متن کاملBioactive oleanane, lupane and ursane triterpene acid derivatives.
Betulinic, ursolic and oleanolic acids isolated from the aerial parts of Eriope blanchetii (Lamiaceae) were subjected to different esterification reactions, yielding 12 C-3 position ester derivatives. All compounds were identified using spectroscopic techniques, such as IR, 1H-NMR and MS. The derivatives were further investigated for their antioxidant level, Artemia salina lethality and antimic...
متن کاملSynthesis and Antibacterial Activity of Amide Derivatives from Acrylopimaric Acid
This paper reports on the synthesis of a series of amide derivatives from acrylopimaric acid (APA). The derivatives contained aromatic groups and were characterized by IR, HNMR, MS, and elemental analysis. The antibacterial activity of the derivatives against Gram-negative bacteria and Gram-positive bacteria were also investigated. When compared with the other derivatives, compounds 3a and 3f s...
متن کاملA New Triterpene Acid from the Fern Notholaena grayi
Previous studies on several specimens of N. grayi Davenp. have revealed, in the white frond exudate, flavonoid aglycones which form a con stant pattern [1], It was indicated later, in a tabu lated survey of 23 specimens of N. grayi, that a fur ther unknown flavonoid occurs in every species, in small or in trace amount [2], When bulk material, collected in Arizona, was processed for the isola...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2007
ISSN: 0103-5053
DOI: 10.1590/s0103-50532007000800022