Results 31 to 40 of about 11,559 (254)

Optimization of anti-proliferative activity using a screening approach with a series of bis-heterocyclic G-quadruplex ligands [PDF]

open access: yes, 2013
Using a phenotypic screening and SAR optimization approach, a phenyl-bis-oxazole derivative has been identified with anti-proliferative activity, optimized with the use of a panel of cancer cell lines.
CIANCIMINO, Cristina   +4 more
core   +1 more source

Gold Catalyzed Multicomponent Reactions beyond A3 Coupling

open access: yesMolecules, 2018
The preparation of complex architectures has inspired the search for new methods and new processes in organic synthesis. Multicomponent reactions have become an interesting approach to achieve such molecular diversity and complexity.
Renso Visbal   +3 more
doaj   +1 more source

Simple and Expedient Access to Novel Fluorinated Thiazolo- and Oxazolo[3,2-a]pyrimidin-7-one Derivatives and Their Functionalization via Palladium-Catalyzed Reactions

open access: yesMolecules, 2022
An efficient, versatile, and one-pot method for the preparation of novel fluorinated thiazolo- and oxazolo[3,2-a]pyrimidin-7-ones is described from 2-aminothiazoles or 2-amino-oxazoles and fluorinated alkynoates.
Wafa Blancou   +4 more
doaj   +1 more source

Structure of the cyanobactin oxidase ThcOx from Cyanothece sp. PCC 7425, the first structure to be solved at Diamond Light Source beamline I23 by means of S-SAD [PDF]

open access: yes, 2016
Acknowledgements We thank Diamond Light Source for providing access to beamline I23. We also thank Thomas Sorensen and his staff for access to and support on beamline I02.
Bent, Andrew F   +8 more
core   +1 more source

Total synthesis of the post-translationally modified polyazole peptide antibiotic goadsporin [PDF]

open access: yes, 2017
The structurally unique polyazole antibiotic goadsporin contains six heteroaromatic oxazole and thiazole rings integrated into a linear array of amino acids that also contains two dehydroalanine residues.
Arnison   +22 more
core   +2 more sources

1,4- Addition of diazomethane to a heterodiene: a direct preparation of the oxazolic ring

open access: yesAnais da Academia Brasileira de Ciências, 2007
The reaction of naphthoquinone-oximes (3) and (4) with diazomethane yields directly, in one step, the oxazoles (5) and (6), respectively.A reação das naphthoquinona-oximas (3) e (4) com diazometano fornece diretamente, em uma etapa, os oxazóis (5) e (6),
Flávio da S. Emery   +9 more
doaj   +1 more source

2-(3-Bromophenyl)imidazo[2,1-b]oxazole

open access: yesMolbank, 2023
The microwave-assisted reaction of 2-nitroimidazole with 3-bromophenacyl bromide in the presence of potassium carbonate as a base and dimethylformamide as a solvent afforded 2-(3-bromophenyl)imidazo[2,1-b]oxazole.
Ángel Cores   +2 more
doaj   +1 more source

Identification and isolation of insecticidal oxazoles from Pseudomonas spp.

open access: yesBeilstein Journal of Organic Chemistry, 2012
Two new and five known oxazoles were identified from two different Pseudomonas strains in addition to the known pyrones pseudopyronine A and B. Labeling experiments confirmed their structures and gave initial evidence for a novel biosynthesis pathway of ...
Florian Grundmann   +7 more
doaj   +1 more source

Synthesis of 2,6-bis-(oxazolyl)pyridine ligands for luminescent Ln(III) complexes [PDF]

open access: yes, 2012
Submitted to the European Journal of Organic ChemistryNew bis-(oxazolyl)pyridine ligands for Ln(III) ions were prepared using a expeditious methodology from threonine and dipicolinic acid chloride.
Castanheira, Elisabete M. S.   +4 more
core   +1 more source

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