Results 191 to 200 of about 13,012 (246)

Lifecycle design of synthetic polymers: toward recyclability and sustainability. [PDF]

Natl Sci Rev
Xie T, Men Y.
europepmc   +1 more source

Inverse stable isotopic labeling for natural product characterization and discovery.

Nat Prod Rep
Robes JMD, Puri AW.
europepmc   +1 more source

N- to C-Peptide Synthesis, Arguably the Future for Sustainable Production. [PDF]

J Pept Sci
Ghosh K, Lubell WD.
europepmc   +1 more source

Collective Asymmetric Total Syntheses of Musellarins A-E. [PDF]

J Org Chem
Liu Y, Ou Y, Chang V, Yao H, Tong R.
europepmc   +1 more source

Making Blank Faces Expressive: Chemical Approaches to the Modification of Chemically Inert Peptides. [PDF]

J Pept Sci
Moriyama Y, Sada H, Nanjo T.
europepmc   +1 more source

Epimerization of chlorophyll derivatives

, 1992
Mazaki, Hitoshi, Watanabe, Tadashi, Takahashi, Terumi, Struck, Andreas, Scheer, Hugo   +4 more
openaire   +1 more source

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Epimerization of Cypermethrin Stereoisomers in Alcohols

Journal of Agricultural and Food Chemistry, 2009
Isomerization induced by light, heat, and organic solvents has been shown to occur for some pyrethroid insecticides. Alcohols are popular solvents that are used in sample extraction, storage, and analysis. Thus, alcohol-induced epimerization may contribute to the incorrect interpretation of results from enantioselective chemical analysis and bioassay ...
Daniel Schlenk, Jay Gan, Cynthia Larive   +2 more
exaly   +3 more sources

The epimerization of peptide aldehydes—a systematic study

Journal of Peptide Science, 2006
AbstractPeptide aldehydes are interesting targets as enzyme inhibitors, and can be used for pseudopeptide chemistry or ligation. However, they are known to be subjected to epimerization during synthesis or purification. By 1H NMR, a model dipeptide aldehyde can be used to check the possible epimerization occurring during synthesis. Various purification
Matheo Berthet, Jean-Alain Fehrentz
exaly   +3 more sources

Functional Characterization and Crystal Structure of the Bifunctional Thioesterase Catalyzing Epimerization and Cyclization in Skyllamycin Biosynthesis [PDF]

ACS Catalysis, 2021
The d-amino acid residues are hallmark building blocks of nonribosomal peptides. Here, we report the bifunctional thioesterase domain (TE domain) Skyxy-TE that catalyzes both epimerization and cyclization in skyllamycin biosynthesis.
Ming Ma, Suwei Dong, Liangren Zhang
exaly   +2 more sources

The Epimerization of Sesamin and Asarinin

Journal of Natural Products, 2005
Sesamin (1) and asarinin (2) are two C-7' epimeric lignans. Molecular modeling by semiempirical methods indicated that 1 is more stable than 2 by about 2.5 kcal/mol. However, epimerization under acidic conditions led to a 44.8/55.2 equilibrium ratio of 1 and 2.
Chia-Ying, Li, Tahsin J, Chow, Tian-Shung, Wu   +2 more
openaire   +2 more sources