Results 11 to 20 of about 172,313 (331)

Biomedical Importance of Indoles

open access: yesMolecules, 2013
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]

open access: yesClinical Chemistry, 1998
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

Indoles from the commensal microbiota act via the AHR and IL-10 to tune the cellular composition of the colonic epithelium during aging

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
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 [PDF]

open access: yesMarine Drugs, 2015
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

Recent Developments in Ultrasound-Promoted Aqueous-Mediated Greener Synthesis of Biologically Vital Indole Derivatives

open access: yesSynOpen, 2023
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

"The toxicity of indol" [PDF]

open access: yesExperimental Biology and Medicine, 1904
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]

open access: yesProceedings of the 14th Brazilian Meeting on Organic Synthesis Proceedings, 2013
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

Sesquiterpenyl indoles

open access: yesNatural Product Reports, 2013
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

Fluorescent Pyranoindole Congeners: Synthesis and Photophysical Properties of Pyrano[3,2-f], [2,3-g], [2,3-f], and [2,3-e]Indoles

open access: yesMolecules, 2022
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

open access: yesMolecules, 2023
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

Home - About - Disclaimer - Privacy