Results 111 to 120 of about 12,444 (248)

Simultaneous Determination of Six Chromones in Saposhnikoviae Radix via Quantitative Analysis of Multicomponents by Single Marker

open access: yesJournal of Analytical Methods in Chemistry, 2020
A method, quantitative analysis of multicomponents by single marker (QAMS), was established and fully verified based on high-performance liquid chromatography (HPLC) for simultaneous determination of six chromone indicators of Saposhnikoviae Radix (SR ...
Jinhua Zhang   +7 more
doaj   +1 more source

Synthesis, Leishmanicidal and Cytotoxic Activity of Triclosan-Chalcone, Triclosan-Chromone and Triclosan-Coumarin Hybrids [PDF]

open access: yes, 2014
Twelve hybrids derived from triclosan were obtained via Williamson etherification of O-triclosan alkyl bromide plus chalcone and O-coumarin or O-chromone alkyl bromide plus triclosan, respectively.
Carda, Miguel   +7 more
core   +2 more sources

A New Macrodiolide and Two New Polycyclic Chromones from the Fungus Penicillium sp. SCSIO041218

open access: yesMolecules, 2019
A new macrodiolide, mangrovlide A (1) and two new polycyclic chromones, penixanthones C (2) and D (3), as well as four other known compounds (4−7), have been isolated from the mangrove sediment derived fungus Penicillium sp.
Jingxia Huang   +5 more
doaj   +1 more source

Ultrasonicated synthesis of 1-(2-hydroxyaryl)-3-(pyrrolidin-1-yl)-prop-2-en-1-ones and their antimicrobial screening [PDF]

open access: yes, 2009
: A facile synthesis of title compounds has been carried out under ultrasound irradiation. The main advantages of the present procedure are shorter reaction time and higher yield.
Bhausaheb Karale   +3 more
core   +1 more source

Phytochemistry of the genus Selaginella (Selaginellaceae). [PDF]

open access: yes, 2014
The Selaginellaceae family includes the single genus Selaginella, which is found worldwide and comprises approximately 700 to 750 species. A number of species have been traditionally used for medicinal purposes in the whole world, and the phytochemistry ...
ALMEIDA, J. R. G. da S.   +5 more
core  

2-Styrylchromones as novel inhibitors of xanthine oxidase. A structure-activity study [PDF]

open access: yes, 2002
The purpose of this study was the evaluation of the xanthine oxidase (XO) inhibition produced by some synthetic 2-styrylchromones. Ten polyhydroxylated derivatives with several substitution patterns were synthesised, and these and a positive control,
Bastos, Maria de Lourdes   +6 more
core   +1 more source

Biochemical, haematological and histopathological studies of extract of Ageratum conyzoides L. in Sprague Dawley rats [PDF]

open access: yes, 2010
This study was conducted to evaluate the safety potential of the leaf extract of Ageratum conyzoides Linnaeus in Sprague Dawley (SD) rats using biochemical, haematological and histological indices of toxicity.
Adebayo, H. A.   +9 more
core   +2 more sources

In Silico and In Vitro Evaluation of the Antifungal Activity of a New Chromone Derivative against Candida spp.

open access: yesBioTech
Candida species are frequently implicated in the development of both superficial and invasive fungal infections, which can impact vital organs. In the quest for novel strategies to combat fungal infections, there has been growing interest in exploring ...
Gleycyelly Rodrigues Araújo   +13 more
doaj   +1 more source

Synthesis of xanthone-1,2,3-triazole dyads [PDF]

open access: yes, 2015
Xanthones and 1,2,3-triazoles are known to exhibit several biological, pharmacological and biocidal properties[1]. The potential applications of these two classes of heterocycles led us to develop new strategies to synthesize xanthone-1,2,3-triazole ...
Albuquerque, Hélio   +3 more
core  

Chromones and Flavones. Part IV Chloromethylation of Some Chromones and Flavones

open access: yes, 1962
Flavone and 2-methylehrnmone on chloromethylation afford the 3-chloromethyl derivatives. 7-Methory-­2-methylehromone and 7- methoxyflavore afford similarly the 8-chlarnmethyl- and the 3,8-diehlommethyl derivatives. The structures have been proved by reduction to the corresponding methyl derivatives which have been compared with the authentic specimens.
N. V. Shah, Sethna, Suresh
openaire   +1 more source

Home - About - Disclaimer - Privacy