Titlebook: Amino Acids; Chemistry, Biology a Gert Lubec,Gerald A. Rosenthal Book 1990 ESCOM Science Publishers B.V. 1990 Purine.Pyrimidine.amino acid.

CAJ

Synthesis of 11C-labelled amino acidsfferent approaches such as resolution of racemic mixtures or asymmetric syntheses by chemical or enzymatic methods have been used. The importance of the labelling position in the molecule and some special problems encountered when working with short-lived radionuclides of high specific radioactivity are discussed.

Audiometry

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GOAT

3-Amino-2,-azirines, equivalents of α,α-disubstituted α-amino acids in the synthesis of heterocyclesc peptides and depsipeptides is demonstrated by the synthesis of segments of the peptaibols . and . as well as of model peptides, used for studies of the influence of α,α-disubstitution on the conformation of the peptide. . an analogous approach, the synthesis of .[Gly-Phe(2Me)-Aib-Aib-Gly] is achie

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ALLAY

Chiroptical properties of fluorescamine and MDPF condensation compounds with amino acids, amino acidon effects should be used following the empirical rule: in L-series the second CD band at 340–315 nm is negative, whereas the third one at 290–270 nm is positive. For the MDPF condensation compounds with dipeptides, only the sign of the third Cotton effect is reliable. A pyrrolinone chirality rule i

Favorable

公社

Amino acid analysis by derivatization with o-phthaldialdehyde and chiral thiols with a device for automated precolumn derivatization, a fluorescence detector and a workstation for data processing. Chromatography was performed by employing octadecylsilyl silica (3 μm) as the stationary phase and gradients of sodium acetate buffers with acetonitrile as the eluents. The utility o

生命

Chiral ligand-exchange chromatography of amino acid derivativeshese derivatives are among the most frequently used in peptide synthesis. However, 9-fluorenylmethyloxycarbonyl(Fmoc)-DL-amino acids were not, or unsatisfactorily, resolved by LE-HPLC under the conditions used.

闷热

Book 1990ted and characterized from plant, fungal or animal sources. Investigations of the protein amino acids have proven of outstanding value in enhancing our understanding of a variety of physiological and neurological topics that affect human health and well being. Amino acids are used to probe inhibitor