Results 51 to 60 of about 31,700 (240)

tert-Butyl 5-methoxy-3-pentylindole-1-carboxylate [PDF]

open access: yes, 2004
he molecule of the title compound, C₁₉H₂₇NO₃, is essentially planar, with all non-H atoms within 0.2 Å of the nine-membered indole plane, except for the three tert-butyl C atoms.
Coleman, Claire M.   +2 more
core   +1 more source

Stereocontrolled enantioselective total synthesis of the [2+2] quadrigemine alkaloids [PDF]

open access: yes, 2015
A unified strategy for enantioselective total synthesis of all stereoisomers of the [2+2] family of quadrigemine alkaloids is reported. In this approach, two enantioselective intramolecular Heck reactions are carried out at the same time on precursors ...
Canham, SM   +6 more
core   +4 more sources

Lolitrem B and Indole Diterpene Alkaloids Produced by Endophytic Fungi of the Genus Epichloë and Their Toxic Effects in Livestock

open access: yesToxins, 2016
Different group of alkaloids are produced during the symbiotic development of fungal endophytes of the genus Epichloë in grass. The structure and toxicity of the compounds vary considerably in mammalian herbivores and in crop pests.
Guerre Philippe
doaj   +1 more source

Secondary Metabolites from Rubiaceae Species

open access: yesMolecules, 2015
This study describes some characteristics of the Rubiaceae family pertaining to the occurrence and distribution of secondary metabolites in the main genera of this family. It reports the review of phytochemical studies addressing all species of Rubiaceae,
Daiane Martins, Cecilia Veronica Nunez
doaj   +1 more source

Microbial Hydroxylation of Indole Alkaloids [PDF]

open access: yesApplied Microbiology, 1964
The hydroxylation of the indole-type alkaloids, yohimbine, α-yohimbine, β-yohimbine, and corynanthine, was achieved with several genera of higher fungi and species of Streptomyces . Microorganisms were found which monohydroxylated these compounds in three different positions.
R E, HARTMAN   +3 more
openaire   +2 more sources

Dual Induction of New Microbial Secondary Metabolites by Fungal Bacterial Co-cultivation [PDF]

open access: yes, 2017
We thank the College of Physical Sciences, University of Aberdeen, for provision of infrastructure and facilities in the Marine Biodiscovery Centre.
Ebel, Rainer   +4 more
core   +2 more sources

Chemical Metabolomics: Chemical Biology Tools for Advanced Metabolism Investigations

open access: yesAngewandte Chemie International Edition, EarlyView.
The human metabolism has been investigated for several millennia. The metabolome is known for a high complexity due to a large number of different metabolites that are present at different concentrations. Metabolomics has been developed as a field to investigate the entire human metabolome and to elucidate disease development mechanisms.
Alejandro Torregrosa‐Chinillach   +4 more
wiley   +1 more source

Catalytic enantioselective synthesis of quaternary carbon stereocentres. [PDF]

open access: yes, 2014
Quaternary carbon stereocentres-carbon atoms to which four distinct carbon substituents are attached-are common features of molecules found in nature. However, before recent advances in chemical catalysis, there were few methods of constructing single ...
Overman, Larry E, Quasdorf, Kyle W
core  

7‑hydroxymitragynine is an active metabolite of mitragynine and a key mediator of its analgesic effects [PDF]

open access: yes, 2019
Mitragynina speciosa, more commonly known as kratom, is a plant native to Southeast Asia, the leaves of which have been used traditionally as a stimulant, analgesic, and treatment for opioid addiction.
Ansonoff, Michael   +12 more
core   +3 more sources

Biosynthesis of fungal indole alkaloids [PDF]

open access: yesNat. Prod. Rep., 2014
This review provides a summary of recent research advances in elucidating the biosynthesis of fungal indole alkaloids.
Xu, Wei, Gavia, Diego J, Tang, Yi
openaire   +4 more sources

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