Results 121 to 130 of about 14,944,148 (406)

Synthetic avenues towards a tetrasaccharide related to Streptococcus pneumonia of serotype 6A

open access: yesBeilstein Journal of Organic Chemistry, 2018
Streptococcus pneumonia (SPn) is a Gram-positive bacterium which causes life threatening diseases. The bacteria protect themselves against non-specific host defence by an external polysaccharide (PS) capsule which bears a repeating unit, α-D-Galp(1->3)-α-
Aritra Chaudhury   +2 more
doaj   +1 more source

Case Studies of the Synthesis of Bioactive Cyclodepsipeptide Natural Products

open access: yesMolecules, 2013
Cyclodepsipeptide natural products often display intriguing biological activities that along with their complex molecular scaffolds, makes them interesting targets for chemical synthesis.
Markus Kaiser, Sara C. Stolze
doaj   +1 more source

Total Synthesis of Tulearin C

open access: yes, 2011
With the help of the smaller brother: Although alkyne metathesis will always be the little brother of alkene metathesis, it allows problems to be solved that are currently beyond reach of the more famous sibling.
Fürstner, A.   +4 more
core   +1 more source

The zinc finger domains of PARP‐1 are selectively and potently inhibited by the Au(I)‐based drugs sodium aurothiomalate and aurothioglucose

open access: yesFEBS Letters, EarlyView.
PARP‐1 is a key enzyme in the DNA damage response, and its inhibition induces cancer cell death via synthetic lethality. Au(I)‐based drugs, such as aurothioglucose and sodium aurothiomalate, block PARP‐1's DNA‐dependent activity by targeting its zinc finger domains.
Uliana Bashtanova, Melinda Jane Duer
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Sordarin, an antifungal agent with a unique mode of action

open access: yesBeilstein Journal of Organic Chemistry, 2008
The sordarin family of compounds, characterized by a unique tetracyclic diterpene core including a norbornene system, inhibits protein synthesis in fungi by stabilizing the ribosome/EF2 complex.
Huan Liang
doaj   +1 more source

Total Synthesis of Amphidinolide F

open access: yes, 2013
Orchestrated yet nonconsonant: The challenge posed by the “umpoled” 1,4-dioxygenation pattern characteristic for the polyketide frame of amphidinolide F was mastered by a late-stage ring-closing alkyne metathesis followed by a directed transannular ...
Fürstner, A.   +5 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Enantioselective carbenoid insertion into C(sp3)–H bonds

open access: yesBeilstein Journal of Organic Chemistry, 2016
The enantioselective carbenoid insertion into C(sp3)–H bonds is an important tool for the synthesis of complex molecules due to the high control of enantioselectivity in the formation of stereogenic centers.
J. V. Santiago, A. H. L. Machado
doaj   +1 more source

Total synthesis of natural products containing benzofuran rings

open access: yes, 2017
Research on natural products containing benzofuran has remarkably increased during the past few decades. Newly isolated natural products with complex structures are being studied, characterized and screened for possible biological activities.
M. Heravi   +3 more
semanticscholar   +1 more source

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