Results 71 to 80 of about 4,751 (182)

CHEMICAL CONSTITUENTS OF Sinningia mauroana AND SCREENING OF ITS EXTRACTS FOR ANTIMICROBIAL, ANTIOXIDANT AND CYTOTOXIC ACTIVITIES

Química Nova
Phytochemical study of aerial parts from Sinningia mauroana Chautems (Gesneriaceae) yielded 17 known compounds: sitosterol, stigmasterol, betulinic acid, oleanolic acid, hederagenin, maslinic acid, ursolic acid, pomolic acid, soranjidiol, methyl 4 ...
Vanessa Winiewski, Alessandra F. Serain, Eduardo L. de Sá, Marcos J. Salvador, Maria Élida A. Stefanello   +4 more
doaj   +1 more source

NAPHTHOQUINONE ANTIMALARIALS

Journal of Biological Chemistry, 1948
HANS HEYMANN, LOUIS F. FIESER
  +4 more sources

ADDITION OF UNSYMMETRICAL DIENES TO ACYL-1,4-BENZOQUINONES AND OXIDATION OF THE ADDUCTS WITH MANGANESE DIOXIDE: A REGIOSPECIFIC ROUTE TO MONO- AND DI-METHYL-1,4-NAPHTHOQUINONES [PDF]

Journal of Sciences, Islamic Republic of Iran, 2000
Regioselective Diels-Alder reactions of acyl-1,4-benzoquinones 1 with, severally, isoprene, trans-piperylene,1-acetoxy-1,3-butadiene and 1-methoxy-1,3-butadiene gave the corresponding adducts 2 in high yield.
doaj  

Regioselective Synthesis and Cytotoxic Effects of New Juglone Derivatives with an Aliphatic Substituent at C(2) or C(3)

Biomolecules
The naphthoquinone juglone (5-hydroxynaphthalene-1,4-dione) (1) occurs abundantly in nature, especially in species belonging to the Juglandaceae family. Due to its multifaceted biological activities, this compound is considered a privileged structure in ...
Giovanni Vidari, Emanuele Casali, Andrea Magni, Sirwan T. Othman, Giuseppe Zanoni, Alessio Porta   +5 more
doaj   +1 more source

Recent advances on naphthoquinone-imidazolyl and naphthoquinone-thiazolyl derivatives as photoinitiators of photopolymerization

European Polymer Journal
Visible light photopolymerization is facing a revolution with the development of energy-efficient light sources, namely LEDs. With the ongoing efforts to develop photoinitiating systems outperforming the existing ones in terms of polymerization rates and monomer conversions, the search for new families of dyes that have not been investigated yet in the
openaire   +1 more source

Synthesis of the Tetracyclic Spiro-naphthoquinone Chartspiroton

Organic Letters
Chartspiroton is a recently discovered naphthoquinone natural product that features a spiro-fused benzofuran lactone. We report its first synthesis via an 11-step linear sequence. The sterically hindered tetra-ortho-substituted biaryl subunit was installed by base-induced ring expansion of a readily available 1,3-indandione.
Röder, Liesa, Wurst, Klaus, Magauer, Thomas   +2 more
openaire   +3 more sources

Photochemistry of Naphthoquinones

Revista Virtual de Química, 2015
Nanci C. de Lucas, Aurélio B. B. Ferreira, José Carlos Netto-Ferreira   +2 more
openaire   +1 more source

Studies on the Derivatives of Naphthoquinones. XV

Proceedings of the Japan Academy, 1958
KURODA, Chika, OKAJIMA, Masaye
openaire   +4 more sources

Cytotoxicity of naphthoquinones and their capacity to generate reactive oxygen species is quenched when conjugated with gold nanoparticles

International Journal of Nanomedicine, 2011
Priya Srinivas1,2, Chitta Ranjan Patra2,4, Santanu Bhattacharya2, Debabrata Mukhopadhyay2,31Integrated Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Kerala, India; 2Department of Biochemistry and Molecular Biology; 3Department of ...
Srinivas P, Patra CR, Bhattacharya S, Mukhopadhyay D   +3 more
doaj  

Experimental and computational analysis of SERCA inhibition by naphthoquinone derivatives. [PDF]

Bioorg Med Chem
Cheng S, Kumar S, Sobota S, Drennan A, Johnson N, Maleh S, Almahmodi D, Paula S.   +7 more
europepmc   +1 more source