Results 71 to 80 of about 6,559 (227)

Magnesium(II) Porphyrazine with Thiophenylmethylene Groups-Synthesis, Electrochemical Characterization, UV–Visible Titration with Palladium Ions, and Density Functional Theory Calculations

open access: yesMolecules
The presented studies aimed to evaluate the peripheral coordinating properties of a novel porphyrinoid family representative preceded by its synthesis for potential sensing purposes.
Wojciech Szczolko   +4 more
doaj   +1 more source

Total Synthesis of (+)-Phomactin A Using a B-Alkyl Suzuki Macrocyclization

open access: yes, 2016
A total synthesis of (+)-phomactin A is described using a B-alkyl Suzuki macrocyclization to incorporate the isolated trisubstituted olefin. This macrocyclization was accomplished with the sensitive hydrated furan ring in place. (R)-(+)-pulegone was used
Peter J. Mohr (1706467)   +1 more
core   +2 more sources

AvmM catalyses macrocyclization through dehydration/Michael-type addition in alchivemycin A biosynthesis

open access: yesNature Communications, 2022
Macrocyclization is an important process in bioactive natural product synthesis. Here, the authors report on the study of a macrocyclic ring constructing enzyme in the biosynthesis of alchivemycin A and using gene deletion, biochemical assays and isotope
Hong Jie Zhu   +11 more
doaj   +1 more source

Thiol-Yne click chemistry of acetylene-enabled macrocyclization

open access: yesNature Communications, 2022
Thiol–yne coupling is a reliable method to link two molecular units, but has not been extensively explored for the construction of macrocycles. Here, the authors use gaseous acetylene, the simplest alkyne unit, to synthesize a variety of macrocycles ...
Shiwei Lü, Zipeng Wang, Shifa Zhu
doaj   +1 more source

Stereoselective macrocyclization through zirconocene-mediated coupling of achiral dialkynes

open access: yes, 2009
Stereoselective macrocyclization through zirconocene-mediated coupling of achiral ...
Adam D Miller (10997982)   +5 more
core   +1 more source

High-Yield Macrocyclization via Glaser Coupling of Temporary Covalent Templated Bisacetylenes

open access: yes, 2016
High-Yield Macrocyclization via Glaser Coupling of Temporary Covalent Templated ...
Sigurd Höger (40537)   +2 more
core   +1 more source

Copper-Catalyzed Azide-Alkyne Cycloaddition (CuAAC)-Mediated Macrocyclization of Peptides: Impact on Conformation and Biological Activity

open access: yes, 2018
The long-lasting impetus to design novel modes of macrocyclization, and their implementation into a wide range of bioactive peptides, originates from their contributions to the restriction of conformational space and the stabilization of preferential ...
Paolo Rovero   +3 more
core   +1 more source

Atroposelective Access to Bicyclic Peptides via an Amide Photocaging Strategy

open access: yesAngewandte Chemie International Edition, EarlyView.
Ansamers are an atypical class of atropisomers (Pansa/Mansa) and stereoselective synthesis of its two conformational isomers is challenging. We introduce a photocaged amide protection strategy: photolabile groups in monocycles reversibly modulate amide geometry, biasing macrolactamization to selectively give Pansa or Mansa.
Haijian Yang   +7 more
wiley   +1 more source

Total synthesis of the reported structure of ceanothine Dviaa novel macrocyclization strategy

open access: yes, 2018
A novel regio- and stereocontrolled macrocyclization strategy was developed for the first synthesis of ceanothine D.
Madeleine M. Joullié, Jisun Lee
core   +1 more source

Natural scaffolds-inspired synthesis of CF3-substituted macrolides enabled by Rh-catalyzed C–H alkylation macrocyclization

open access: yes, 2022
The development of innovative strategies and methods to provide natural product-like macrocycles not accessible by biosynthesis, but endowed with novel bioactivities and simplified structure, is highly desirable.
Tang, Bixi   +8 more
core   +1 more source

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