[PDF] Top 20 Synthesis of new xanthone derivatives
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Synthesis of new xanthone derivatives
... Since a long time ago, compounds with the xanthone core are of great interest for chemists, biologists and pharmacologists due to their potencial biological properties. Certain natural[r] ... See full document
18
Snail shell as a new natural and reusable catalyst for synthesis of 4H-Pyrans derivatives
... solution of aldehydes 1 (2 mmol), malononitrile 2 (2 mmol), and ethyl acetoacetate or acetyl acetone 3 (2 mmol) in the MeOH (1 mL), was added the snail shell ...progress of the reaction was monitored by ... See full document
10
Novel chromone and xanthone derivatives: Synthesis and ROSRNS scavenging activities
... multiplicity of pro- tons H- a and H- b from doublets to multiplets, indicating that these protons are now included in a 1,3-diene ...resonances of C- a , C- b , C- g and C- d carbons appear in 13 C NMR ... See full document
12
Synthesis, cytotoxicity and mechanistic evaluation of 4oxoquinoline3carboxamide derivatives : finding new potential Aaticancer drugs
... internal standard tetramethylsilane (TMS). Signals were designated as follows: brs, broad singlet; s, singlet; d, doublet; dd, doublet of doublets; t, triplet; q, quartet; m, multiplet. Hydrogen and carbon NMR ... See full document
20
Xanthone and Flavone Derivatives as Potential Dual Agents for Alzheimer's Disease
... condensation of 2,6-dihydroxybenzoic acid with phloroglucinol in the presence of zinc chloride in phosphorus oxychloride, instead of Eaton’s reagent (Figure ...the synthesis of ... See full document
149
Synthesis and antimicrobial activities of 5arylidenethiazolidine2,4dione derivatives
... one of the world’s major public health concerns. he main cause of bacterial resistance is the improper and repeated use of ...problem, new chemical substances against microorganisms are being ... See full document
9
Synthesis of limonene b-amino alcohol derivatives in support of new antileishmanial therapies
... all of these treatments have significant drawbacks in terms of route of administra- tion, length of treatment (21-28 days), toxicity and cost, which limit their use in endemic areas (Croft ... See full document
5
Antitumor activity of xanthone derivatives: effects on the immune microenvironment
... pattern of cytokines altered by the treatment with α-MG, it was inferred the potential underling mechanism of iNOS inhibition by ...number of pro-inflammatory cytokines, particularly TNF-α, IL-1β and ... See full document
125
Synthesis of new carboxylic chiral derivatives of xanthones inspired on marine xanthones
... activity of the synthesized compounds against bacterial growth were performed by measuring the optical density variations during ...inhibition of bacterial growth of Staphylococcus aureus ...cases ... See full document
123
Synthesis of Curcumin Derivatives As Potential P-Glycoprotein Inhibitors
... use of small molecules as pharmacological inhibitors. Downregulation of MDR transporters by antisense oligonucleotides is one of the strategies being studied ...the of MDR proteins is another ... See full document
145
New Synthesis of 2,3-Diarylxanthones
... a xanthone core are of great interest for chemists, bi- ologists and ...biogenesis of xanthones largely dictates the nature and position of ...development of new syn- thetic ... See full document
5
1,2,4-triazine derivatives: Synthesis and biological applications
... a new series of thieno[20,30:4,5]pyrimido[1,2-b][1,2,4]triazines and thieno[2,3-d][1,2,4]triazolo[1,5-a] ...values of the active compounds were also ...thieno[2,3-d][1,2,4]triazolo[1,5-a]pyrimidine ... See full document
14
Synthesis of new derivatives from 1,2a,4a,5-tetramethyl-8-oxabicyclo[3.2.1]oct-6-en-3-one.
... SYNTHESIS OF NEW DERIVATIVES FROM ...the synthesis of biologically active compounds through a [3+4] cycloaddition reaction to produce the main frame structure, followed by ... See full document
6
New iodine derivatives of flavonol and isoflavone
... tion of two flavonoids ...methylation of bichanin A (5,7- dihydroxy-4 ′ -methoxyisoflavone) isolated from Andira species (Silva et ...functionality of similar nucleus in synthesis of ... See full document
8
New iodine derivatives of flavonol and isoflavone
... identification of natural flavonoids in Solanaceae (Silva 2002, Silva et ...preparation of some derivatives and made the unambiguous proton and carbon-13 chemical shifts assignments (Carvalho et ... See full document
8
Photochemical Transformations of Tetrazole Derivatives: Applications in Organic Synthesis
... photochemistry of tetrazoles isolated in cryogenic inert matrices, has recently been reviewed ...investigation of the photodegradation pathways, enabling the detection and charaterisation of unstable ... See full document
18
Synthesis of novel and benzoxazepine derivatives with antitumoral activity
... The synthesis of different isomeric forms of these compounds by varying the position of the heteroatoms in their structures together with their unique pharmacological proper- ties make the ... See full document
4
Synthesis and electrochemical study of some novel alkynylferrocene derivatives
... their derivatives are well-known redox active materials and were extensively used by construction of modified electrodes for the design of electrochemical sensors and ...derivatization of ... See full document
6
Synthesis and evaluation of novel pyrazole derivatives for cytotoxic activity
... review of the reported pyrazole derivatives regarding their cytotoxic ...pyrazole derivatives have well-known molecular targets, that are briefly ...action of the most relevant reported ... See full document
119
Synthesis of Locust Bean Gum new derivatives and their application in nanoparticulate drug delivery systems
... many new biomolecules that have been identified as having therapeutic ...number of molecules that are ...variety of molecules is included in this group, from protein and peptides, to antigens and ... See full document
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