Determination of Amide cis/trans Isomers in N‐Acetyl‐d‐glucosamine: Tailored NMR Analysis of the N‐Acetyl Group Conformation
Sign Up to like & getrecommendations! Published in 2022 at "Chembiochem"
DOI: 10.1002/cbic.202200338
Abstract: N‐Acetyl‐d‐glucosamine (GlcNAc) is one of the most common amino sugars in nature, but the conformation of its N‐acetyl group has drawn little attention. We report herein the first identification of NH protons of the amide… read more here.
Keywords: conformation; cis; amide cis; acetyl group ... See more keywords
A CGenFF‐based force field for simulations of peptoids with both cis and trans peptide bonds
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Computational Chemistry"
DOI: 10.1002/jcc.25850
Abstract: Peptoids, or poly‐n‐substituted glycines, are peptide‐like polymers composed of a flexible backbone decorated with diverse chemical side chains. Peptoids can form a variety of self‐assembling structures based on the type and sequence of the side… read more here.
Keywords: cis trans; force field; side chains;
Simulation studies of polypeptoids using replica exchange with dynamical scaling and dihedral biasing
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Computational Chemistry"
DOI: 10.1002/jcc.26887
Abstract: Polypeptoids differ from polypeptides in that the amide bond can more frequently adopt both cis and trans conformations. The transition between the two conformations requires overcoming a large energy barrier, making it difficult for conventional… read more here.
Keywords: replica exchange; replica; simulation studies; amide bond ... See more keywords
Stereocomplementary Synthesis of cis- and trans-2-(p-Bromophenyl)-5-methylthiazolidin-4-ones: Useful Umpolung-type Suzuki–Miyaura Cross-coupling Partner and Donor
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Heterocyclic Chemistry"
DOI: 10.1002/jhet.3141
Abstract: Novel cis- and trans-2-(p-bromophenyl)-5-methylthiazolidin-4-ones, S,N-containing heterocyclic compounds, were provided in a cis-stereocomplementary and trans-stereocomplementary synthetic manner. cis-Selective cyclo-condensation proceeded between 2-sulfanylpropanoic acid (thiolactic acid) and an imine derived from 4-bromobenzaldehyde and methylamine, whereas Ti(OiPr)4 and… read more here.
Keywords: methylthiazolidin ones; trans bromophenyl; bromophenyl methylthiazolidin; suzuki miyaura ... See more keywords
Responses of MAC-T Cells to Inhibited Stearoyl-CoA Desaturase 1 during cis-9, trans-11 Conjugated Linoleic Acid Synthesis.
Sign Up to like & getrecommendations! Published in 2018 at "Lipids"
DOI: 10.1002/lipd.12077
Abstract: Cis-9-conjugated, trans-11-conjugated linoleic acid (CLA) is known for its positive activities on human health. The synthesis of cis-9, trans-11 CLA in mammary glands is generally thought to be catalyzed by stearoyl-CoA desaturase 1 (SCD1), but… read more here.
Keywords: cis; mac cells; coa; cis trans ... See more keywords
Cis/trans isomerization of proline peptide bonds in the backbone of cyclic disulfide‐bridged peptides
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DOI: 10.1002/pep2.24088
Abstract: Peptides are of interest as potential therapeutic agents, including cyclic disulfide‐bridged peptides because of their limited conformational flexibility and enhanced stability toward proteolysis. To further constrain the flexibility of the peptide backbone, the disulfide‐bridged rings… read more here.
Keywords: cys; peptide bonds; proline peptide; cis trans ... See more keywords
Effects of multiple environmental factors on elimination of fenvalerate and its cis-trans isomers in aquaculture water
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DOI: 10.1007/s11356-018-3916-8
Abstract: Fenvalerate (FV) is widely used in aquaculture because of their broad spectrums and high efficiency. However, little is known regarding the elimination of FV influenced by environment factors in aquaculture water, especially its cis-trans isomers… read more here.
Keywords: aquaculture water; environmental factors; trans isomers; cis trans ... See more keywords
Development and Validation of a GC-MS/MS Method for cis- and trans-Resveratrol Determination: Application to Portuguese Wines
Sign Up to like & getrecommendations! Published in 2019 at "Food Analytical Methods"
DOI: 10.1007/s12161-019-01482-y
Abstract: Resveratrol is a naturally occurring phytoalexin produced by the Vitis vinifera L. plant. It exists as two isomers (cis and trans), both present in wines. This work describes the development and validation of a GC-MS/MS… read more here.
Keywords: cis trans; determination; development validation; trans resveratrol ... See more keywords
HPLC Characterization of cis and trans Mixtures of Double-Decker Shaped Silsesquioxanes
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DOI: 10.1007/s12633-018-0045-4
Abstract: HPLC was used as the quantitative analysis technique in determining the molar ratio of cis and trans isomers in the double-decker shaped silsesquioxanes (DDSQ). Different experiments were performed to analyze the effects in the retention… read more here.
Keywords: cis; hplc; shaped silsesquioxanes; double decker ... See more keywords
Evidence of Cis/Trans-Isomerization at Pro7/Pro16 in the Lasso Peptide Microcin J25
Sign Up to like & getrecommendations! Published in 2019 at "Journal of The American Society for Mass Spectrometry"
DOI: 10.1007/s13361-019-02134-5
Abstract: AbstractMicrocin J25 is a ribosomal synthesized and post-translationally modified peptide (RiPP) characterized by a mechanically interlocked topology called the lasso fold. This structure provides microcin J25 a potent antimicrobial activity resulting from internalization via the… read more here.
Keywords: cis trans; microcin j25; j25; topology ... See more keywords
Manganese porphyrins as efficient catalysts in solvent-free cyclohexane oxidation
Sign Up to like & getrecommendations! Published in 2017 at "Arabian Journal of Chemistry"
DOI: 10.1016/j.arabjc.2017.12.007
Abstract: Abstract Novel non-symmetric third-generation manganese metalloporphyrins, chlorido(5-(4-nitrophenyl)-10,15,20-triphenyl-2,3,7,8,12,13,17,18 octobromoporphyrinate)manganese(III) (MnBr8P1) and the mixture of isomers chlorido(5,10-(4-nitrophenyl)-15,20-diphenyl-2,3,7,8,12,13,17,18-octabromoporphyrinate)manganese(III) and chlorido(5,15-(4-nitrophenyl)-10,20-diphenyl-2,3,7,8,12,13,17,18-octabromoporphyrinate)manganese(III) (cis/trans-MnBr8P2) were obtained from their second-generation analogues (MnP1 and cis/trans-MnP2). These four catalysts were used in cyclohexane oxidation… read more here.
Keywords: cis trans; cyclohexane oxidation; generation; trans mnbr8p2 ... See more keywords