Results 31 to 40 of about 442 (127)

Structure‐activity profiles of macrolactam immunosuppressant FK‐506 analogues

open access: yesFEBS Letters, 1993
The immunosuppressive agent FK‐506 has received much attention due to its efficacy and potency in the areas of transplant rejection and autoimmune disease. Calcineurin, a Ca2+‐calmodulin activated phosphatase, was recently implicated in the immunosuppressive mechanism of FK‐506.
Kawai, Megumi   +5 more
openaire   +2 more sources

Searching for Glycosylated Natural Products in Actinomycetes and Identification of Novel Macrolactams and Angucyclines [PDF]

open access: yesFrontiers in Microbiology, 2018
Many bioactive natural products are glycosylated compounds in which the sugar components usually participate in interaction and molecular recognition of the cellular target. Therefore, the presence of sugar moieties is important, in some cases essential, for bioactivity.
Mónica G. Malmierca   +15 more
openaire   +5 more sources

Highly Cytotoxic Cryptophycin Derivatives with Modification in Unit D for Conjugation

open access: yesAngewandte Chemie International Edition, Volume 63, Issue 50, December 9, 2024.
Cytotoxic cryptophycins with versatile conjugation handles in unit D are accessible by a highly efficient and scalable synthetic route. This ABC+D strategy enabled the creation of a vast array of cryptophycins leading to a quantitative structure activity relationship, allowing for the synthesis of most potent conjugable cryptophycin derivatives being ...
Cedric Dessin   +7 more
wiley   +1 more source

Reactivity Inside Molecular Flasks: Acceleration Modes and Types of Selectivity Obtainable

open access: yesAngewandte Chemie International Edition, Volume 63, Issue 49, December 2, 2024.
Molecular flasks are hollow supramolecular structures capable of catalyzing organic reactions, often exhibiting complex catalytic mechanisms and selectivity not achievable in bulk solvent. This Review discusses the different acceleration modes that operate within molecular flasks, and showcases the different types of selectivity that are obtainable ...
Leonidas‐Dimitrios Syntrivanis   +1 more
wiley   +1 more source

Synchronous intramolecular cycloadditions of the polyene macrolactam polyketide heronamide C

open access: yesChemical Communications, 2016
Two spontaneous intramolecular cycloadditions lead to the biosynthetic congeners heronamide A and B.
Booth, Thomas J.   +3 more
openaire   +6 more sources

Polycyclic Tetramate Macrolactams and Their Potential as Anticancer Agents

open access: yesOrganics
Natural products have been a reliable source of drug compounds in medical research. Technological advances have led to the discovery and characterization of many compounds that were previously difficult to isolate. However, when searching for anticancer drugs, finding natural compounds that can bind to specific targets is a daunting task.
Alexandria Montavon   +2 more
openaire   +2 more sources

Heronamides G–L, polyene macrolactams from Streptomyces niveus

open access: yesRSC Advances, 2018
New polyene macrolactams, heronamides G–L (1–6) from the fermentation broth of Streptomyces niveus.
Nan Ding   +9 more
openaire   +3 more sources

A plug-and-play system for polycyclic tetramate macrolactam production and functionalization

open access: yesMicrobial Cell Factories
Abstract Background The biosynthesis of the natural product family of the polycyclic tetramate macrolactams (PoTeMs) employs an uncommon iterative polyketide synthase/non-ribosomal peptide synthetase (iPKS/NRPS). This machinery produces a universal PoTeM biosynthetic precursor that contains a tetramic acid moiety ...
Anna Glöckle   +3 more
openaire   +3 more sources

Biosynthesis of Macrolactam Antibiotics in Actinomycetes

open access: yesBiosynthesis of Macrolactam Antibiotics in Actinomycetes
identifier:oai:t2r2.star.titech.ac.jp ...
openaire  

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