Isolation, Structure Elucidation, and Biological Evaluation of 16,23-Epoxycucurbitacin Constituents fromEleaocarpus chinensis
نویسندگان
چکیده
منابع مشابه
Fermentation, Isolation, Structural Elucidation and Biological Activities
A fermentation broth of an unidentified fungus (N983-46) was found to produce DNAgyrase inhibitors, CJ-12,371 (1) and CJ-12,372 (2). Following isolation by solvent extraction and silica gel and ODS(reverse phase) chromatographies, the structures were determined to be novel spiro-ketal compounds with S-connguration at position C-l. CJ-12,371 and CJ-12,372 inhibit both DNA supercoiling and relaxa...
متن کاملStructure Elucidation and Biological Properties
mycelium and aerial hyphae. Spiral spore chains of 10 to 30 or more spores were observed at the tips of aerial hyphae on the various ISP agar media. Fragmentation of substrate mycelium, sclerotium and sporangia-like vesicles was not observed. The cultural characteristics of strain A-230 on various agar media are summarized in Table 1. The physiological properties and the utilization of carbohyd...
متن کاملIsolation and structure elucidation of coumarin and cinamate derivatives from Lycium ruthenicum
Lycium species is a popular medicinal plant in the traditional Chinese medicine and Lycium ruthenicum is a native medicinal plant of Iran. Lycium genus has several biologically important properties too. Investigation of chemical composition of ethyl acetate extract of this plant is the goal of this study. Two coumarins (Scopoletin and Sculetin) and Methyl-2-hydroxy-4-undecanoxy-trans-cinamate w...
متن کاملElucidation of Biological Activity of Silver Based Nanoparticles Using Plant Constituents of Syzygium cumini
We report the efficacy of the silver nanoparticles (AgNPs) synthesized using the leaf and bark extracts of Syzygium cumini (common name Jamun) with silver nitrate (AgNO3)which were used as both reducing and capping agent at varied temperatures- 25°C, 37°C and 80°C. Three sets of AgNPs from leaf and bark extracts, were synthesized at the above mentioned temperatures, a...
متن کاملIsolation and Structure Elucidation of Secondary Metabolites from Echinophora platyloba DC from Iran
Background: Echinophora platyloba DC (Apiaceae) is one of the two endemic species of Echinophora genus in Iran. It has many folkloric uses and several biological activities but there is no information about its phytoconstituents. Objective: In this work some of the secondary metabolites were isolated, purified and identified from n-hexane, ethyl acetate and methanol extracts from the aerial pa...
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 Natural Products
سال: 2012
ISSN: 0163-3864,1520-6025
DOI: 10.1021/np200879p