Results 41 to 50 of about 315,815 (273)

Prevention of aspartimide formation during peptide synthesis using cyanosulfurylides as carboxylic acid-protecting groups

open access: yesNature Communications, 2020
Aspartimide formation is a frequently occurring problem during peptide synthesis. Here, the authors present cyanosulfurylides as a protection group that masks aspartic acid residues during solid phase peptide synthesis, thus preventing aspartimide ...
Kevin Neumann   +3 more
doaj   +1 more source

DNA display III. Solid-phase organic synthesis on unprotected DNA. [PDF]

open access: yesPLoS Biology, 2004
DNA-directed synthesis represents a powerful new tool for molecular discovery. Its ultimate utility, however, hinges upon the diversity of chemical reactions that can be executed in the presence of unprotected DNA.
David R Halpin   +3 more
doaj   +1 more source

Silicon tetrachloride and phenol as N(α)-t-butoxycarbonyl group deprotecting agent in solid phase peptide synthesis [PDF]

open access: yes, 1996
The combination of 1M silicon tetrachloride and 3M phenol serves as an efficient N(α)-t-butoxycarbonyl deblocking agent in solid phase peptide synthesis, the duration of the cleavage being 10 min.
Gangadhar, B.P.   +2 more
core   +1 more source

Aza-peptides: expectations and reality [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2022
The replacement of the α-carbon atom in an α-amino acid structure by a nitrogen atom yields alkylcarbazic acids, also known as α-aza amino acids.
Anu Ploom   +4 more
doaj   +1 more source

Somatostatin subtype-2 receptor-targeted metal-based anticancer complexes [PDF]

open access: yes, 2012
Conjugates of a dicarba analogue of octreotide, a potent somatostatin agonist whose receptors are overexpressed on tumor cells, with [PtCl 2(dap)] (dap = 1-(carboxylic acid)-1,2-diaminoethane) (3), [(η 6-bip)Os(4-CO 2-pico)Cl] (bip = biphenyl, pico ...
Alejandro González-Cantó   +78 more
core   +5 more sources

Green Solvent Mixtures for Solid-Phase Peptide Synthesis: A Dimethylformamide-Free Highly Efficient Synthesis of Pharmaceutical-Grade Peptides

open access: yesACS Sustainable Chemistry and Engineering, 2019
To replace dimethylformamide (DMF) in fluorenylmethoxycarbonyl (Fmoc) solid-phase peptide synthesis, we explored the application of mixtures of green solvents (green solvents mixtures for solid-phase peptide synthesis (GM-SPPS)) as combinations of Cyrene
L. Ferrazzano   +6 more
semanticscholar   +1 more source

Recent Reports of Solid-Phase Cyclohexapeptide Synthesis and Applications

open access: yesMolecules, 2018
Macrocyclic peptides are privileged scaffolds for drug development and constitute a significant portion of macrocyclic drugs on the market today in fields spanning from infectious disease to oncology.
Allan M. Prior   +3 more
doaj   +1 more source

Heterocycles as a Peptidomimetic Scaffold: Solid-Phase Synthesis Strategies

open access: yesPharmaceuticals, 2021
Peptidomimetics are a privileged class of pharmacophores that exhibit improved physicochemical and biological properties. Solid-phase synthesis is a powerful tool for gaining rapid access to libraries of molecules from small molecules to biopolymers and ...
Aizhan Abdildinova   +2 more
doaj   +1 more source

Promotion of the collagen triple helix in a hydrophobic environment [PDF]

open access: yes, 2019
In contrast to many other water-soluble peptide arrangements, the formation of a triple helix in collagen proceeds inside out: polar glycyl residues form the interior, whereas nonpolar prolyl side chains constitute the exterior.
Budisa, Nediljko, Kubyshkin, Vladimir
core   +1 more source

Boosting Fmoc Solid-Phase Peptide Synthesis by Ultrasonication.

open access: yesOrganic Letters, 2019
We investigated the ultrasonication-mediated effects on the Fmoc-based solid-phase peptide synthesis (SPPS). Our study culminated with the development of an ultrasound-assisted strategy (US-SPPS) that allowed for the synthesis of different biologically ...
F. Merlino   +8 more
semanticscholar   +1 more source

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