Results 11 to 20 of about 172,313 (331)
Biomedical Importance of Indoles
The indole nucleus is an important element of many natural and synthetic molecules with significant biological activity. This review covers some of the relevant and recent achievements in the biological, chemical and pharmacological activity of important
N. Kaushik+6 more
semanticscholar +4 more sources
When Is an Indole Not an Indole? [PDF]
An indole is not an indole when it is a naphthalene derivative! We routinely measure 5-hydroxyindoleacetic acid (5HIAA) by a long-established method using nitrosonaphthol, as first described by Udenfriend in 1955 (1), but with various modifications to improve specificity (2).
Kathryn Brownbill, John A. Martin
openaire +2 more sources
Significance Aging is associated with an increase in baseline inflammation, called inflammaging, that may contribute to frailty in geriatric populations.
Domonica N. Powell+6 more
semanticscholar +1 more source
Marine indole alkaloids comprise a large and steadily growing group of secondary metabolites. Their diverse biological activities make many compounds of this class attractive starting points for pharmaceutical development. Several marine-derived indoles were found to possess cytotoxic, antineoplastic, antibacterial and antimicrobial activities, in ...
Netz, Natalie, Opatz, Till
openaire +5 more sources
The extensive range of uses of N-heterocycles as potent bioactive motifs has attracted researchers to expand newer methods for their efficient synthesis. Particularly, indoles are widely known for their prevalent pharmacological properties.
Kanaram Choupra+4 more
doaj +1 more source
Previous observers have shown the comparatively slight toxicity of indol, large amounts having been given to dogs with no resulting symptoms.A series of experiments on rats, guinea pigs and rabbits have shown that if the capacity of the cells of utilizing oxygen is diminished, as by potassium cyanid, or chloroform, the intensity and duration of ...
Richards, A. N., Howland, J.
openaire +3 more sources
New Approaches to Indoles and Indole Alkaloids [PDF]
Second only to pyridines, indoles are among the most common aromatic scaffolds present in bioactive molecules. The 5-hydroxy indole moiety alone has currently >10,500 substructure hits Among the many indole-containing alkaloid scaffolds, ergot alkaloids comprise a notable group of natural products of great biological activities. The striking biological
Filip Petronijevic, Peter Wipf
openaire +2 more sources
The natural product sesquiterpenyl indoles are structural hybrids from farnesyl pyrophosphate and tryptophan or its precursors, often with unusual and complex structural features, many of them with interesting biological activities. In this review the compounds of this class known until now are classified, a biosynthetic approach of each group is ...
Marcos, Isidro S.+4 more
openaire +3 more sources
This paper reports the synthesis of four types of annulated pyranoindole congeners: pyrano[3,2-f]indole, pyrano[2,3-g]indole, pyrano[2,3-f]indole, and pyrano[2,3-e]indole and photophysical studies in this series.
Ainur D. Sharapov+11 more
doaj +1 more source
Regioselective Reaction of 2-Indolylmethanols with Enamides
A highly regioselective reaction of 2-indolylmethanols with enamides has been developed at room temperature by using AlCl3 as a catalyst. A wide range of hybrids (40 examples) of indoles and enamides were obtained in moderate to good yields (up to 98 ...
Yuting Tian+7 more
doaj +1 more source