Results 31 to 40 of about 788,804 (281)

An overview of recent progress in modern synthetic approach—combinatorial synthesis

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2020
Background In recent times, a powerful tool of combinatorial synthesis has been used for the preparation of large chemical entities through a small set up of reactions between different building blocks using solid-phase and solution-phase techniques ...
Chandravadivelu Gopi   +3 more
doaj   +1 more source

Optimized Solid Phase-Assisted Synthesis of Dendrons Applicable as Scaffolds for Radiolabeled Bioactive Multivalent Compounds Intended for Molecular Imaging

open access: yesMolecules, 2014
Dendritic structures, being highly homogeneous and symmetric, represent ideal scaffolds for the multimerization of bioactive molecules and thus enable the synthesis of compounds of high valency which are e.g., applicable in radiolabeled form as ...
Gabriel Fischer   +2 more
doaj   +1 more source

Solid-Phase Synthesis of ?-Oligopeptides

open access: yesCHIMIA, 1997
Fmoc-N-Protected ?-amino acids of (S)-configuration bearing the side chains of Ala, Val, Leu, and Phe in the 3- and 2-position have been prepared. Manual solid-phase synthesis (ortho-chlorotrityl-chloride resin) of the ?-heptapeptides H-?3-HVal-?
Gilles Guichard, Dieter Seebach
doaj   +2 more sources

Combination of automated solid-phase and enzymatic oligosaccharide synthesis provides access to α(2,3)-sialylated glycans [PDF]

open access: yes, 2015
A synthetic strategy combining automated solid-phase chemical synthesis and enzymatic sialylation was developed to access α(2,3)-sialylated glycans.
Fair, Richard J.   +2 more
core   +1 more source

Mechanochemical synthesis of AlCoCrFeNi powders via high-energy ball milling

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2023
AlCoCrFeNi powders in equimolar ratios were synthesized by mechanochemical synthesis on a high-energy ball milling machine (HEBM). The elemental and phase composition of AlCoCrFeNi powders before and after mechanochemical synthesis were investigated by ...
Е.Е. Камбаров   +3 more
doaj   +1 more source

Crystal structure and conductivity of bismuth-containing complex oxides [PDF]

open access: yes, 2015
In the paper, a comprehensive systematic study of different classes of bismuth containing oxide compounds was carried out. The relationship between composition, temperature and concentration regions of existence of stable, specific structure and ...
Buyanova, E. S.   +6 more
core   +2 more sources

Solid-phase synthesis of recyclable diphosphine ligands [PDF]

open access: yes, 2015
The authors thank the European Union (Marie Curie ITN SusPhos, Grant Agreement No. 317404 and COST action PhoSciNet cm08602) for financial support.An efficient solid-phase synthetic approach towards diphosphine ligands is demonstrated.
Heutz, Frank   +2 more
core   +1 more source

Rad27/FEN1 prevents accumulation of Okazaki fragments and ribosomal DNA copy number changes

open access: yesFEBS Letters, EarlyView.
The budding yeast Rad27 is a structure‐specific endonuclease. Here, the authors reveal that Rad27 is crucial for maintaining the stability of the ribosomal RNA gene (rDNA) region. Rad27 deficiency leads to the accumulation of Okazaki fragments and changes in rDNA copy number.
Tsugumi Yamaji   +3 more
wiley   +1 more source

Novel Solution- and Solid-Phase Syntheses of Heterocyclic Systems

open access: yesCHIMIA, 2003
Heterocyclic compounds are an attractive source of screening library structures because they possess varied structural diversity and can exhibit potent biological activity.
Gaelle Cabon   +4 more
doaj   +1 more source

The Synthesis of cis- and trans-Fused Bicyclic Sugar Amino Acids [PDF]

open access: yes, 2006
Four isomeric bicyclic sugar amino acids (SAAs) were prepared from an α-acetylenic-C-glucoside by employing a Petasis olefination and a ring-closing metathesis (RCM) as key steps.
Anelli   +37 more
core   +2 more sources

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