Results 11 to 20 of about 3,572,666 (356)

CycloPepper: a machine learning platform for predicting cyclization outcomes and optimizing synthesis of therapeutic cyclopeptides [PDF]

open access: yesNature Communications
Cyclic peptides exhibit remarkable stability, membrane permeability, and binding affinity, positioning them as promising therapeutics. However, their synthesis, particularly on-resin head-to-tail cyclization, remains challenging, with cyclization site ...
Yourong Pan   +5 more
doaj   +2 more sources

Enantioselective cyclizations and cyclization cascades of samarium ketyl radicals

open access: yesNature Chemistry, 2017
The rapid generation of molecular complexity from simple starting materials is a key challenge in synthesis. Enantioselective radical cyclization cascades have the potential to deliver complex, densely packed, polycyclic architectures, with control of three-dimensional shape, in one step.
Nicolas Kern   +3 more
openaire   +6 more sources

Oxidative Cyclization in Natural Product Biosynthesis

open access: yesChemical Reviews, 2017
Yi Zou, Kenji Watanabe, Yi Tang
exaly   +2 more sources

A study towards the synthesis of (-)-atrop-abyssomicin C core [PDF]

open access: yesJournal of the Serbian Chemical Society, 2021
An attempt to synthesize the cyclohexane core of antibiotic abyssomicin C is described. The initial, protecting group-free approach (relying on internal protection) failed and had to be modified, in order to allow for efficient deprotection of the acid ...
Saičić Radomir N., Trmčić Milena
doaj   +1 more source

Cyclization mechanism and kinetics of poly(acrylonitrile-co-2-acrylamido-2-methylpropane sulfonic acid) copolymer investigated by FTIR spectroscopy

open access: yesPolymer Testing, 2021
Cyclization reaction of poly(acrylonitrile-co-2-acrylamido-2-methylpropane sulfonic acid) [P(AN-co-AMPS)] copolymer during thermal oxidative stabilization (TOS) process was investigated by FTIR and two dimensional (2D) correlation analysis technique. The
Zhipeng He   +8 more
doaj   +1 more source

Stereodivergent atom-transfer radical cyclization by engineered cytochromes P450

open access: yesScience, 2021
Description Radical cyclization made easy Metalloenzymes contain metal cofactors that can sometimes be exploited to catalyze reactions distinct from their natural function.
Qi Zhou   +4 more
semanticscholar   +1 more source

Harnessing the cyclization strategy for new drug discovery

open access: yesActa Pharmaceutica Sinica B, 2022
The design of new ligands with high affinity and specificity against the targets of interest has been a central focus in drug discovery. As one of the most commonly used methods in drug discovery, the cyclization represents a feasible strategy to ...
Kai Tang   +4 more
doaj   +1 more source

Cyclization-activated Prodrugs [PDF]

open access: yesMolecules, 2007
Many drugs suffer from an extensive first-pass metabolism leading to druginactivation and/or production of toxic metabolites, which makes them attractive targets forprodrug design. The classical prodrug approach, which involves enzyme-sensitive covalentlinkage between the parent drug and a carrier moiety, is a well established strategy toovercome ...
Paula Gomes, Nuno Vale, Rui Moreira
openaire   +5 more sources

6-Endo-dig cyclization: Flexible enforce to develop synthetic route in organic syntheses

open access: yesResults in Chemistry, 2023
The organic ring closure reaction of diverse acyclic compounds is governed mostly by the Baldwin rule. The ring closure compounds shows emergent application.
Vembu Yogeshwaran   +3 more
doaj   +1 more source

Influence of Monomer Sequence on the Cyclization Behavior of Poly(acrylonitrile-co-acrylamide)

open access: yesApplied Sciences, 2023
In this research, we have developed the approach to controlled synthesis of acrylonitrile-acrylamide copolymers with narrow molecular weight distribution and various monomer sequence distributions.
Roman V. Toms   +5 more
doaj   +1 more source

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