The synthesis of Nα-protected amino hydroxamic acids from Nα-protected amino acids employing versatile chlorinating agent CPI-Cl
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چکیده
منابع مشابه
Effects of rumen-protected amino acids on ruminant nitrogen balance, plasma amino acid concentrations and performance.
A series of trials was conducted to determine the effects of supplemental rumen-protected methionine (RPMet) and lysine (RPLys) on nutrient metabolism and performance. In situ RPMet N disappearance was less than 4% following 48 h of incubation and was not affected (P greater than .05) by diet or resultant ruminal pH differences, indicating that RPMet was well protected from ruminal microbial de...
متن کاملSolid-Phase Synthesis Utilizing Azido-α-Amino Acids: Reduction of Azido-Protected Proline
Introduction During an evaluation of azido-α-amino acids and their utility in solid-phase peptide chemistry, the octapeptide angiotensin II and a tripeptide thyrotropin-releasing hormone (TRH) analog have been prepared using Meldal’s procedure [1]. A necessary novel step was the reduction of the azido moiety of L-proline, a secondary amine constrained by a ring, to the corresponding free amine ...
متن کاملA straightforward synthesis of 5'-peptide oligonucleotide conjugates using N(alpha)-Fmoc-protected amino acids.
[reaction: see text] 5'-Peptide oligonucleotide conjugates were prepared stepwise on a single support using N(alpha)-Fmoc-protected amino acids and unprotected phosphate groups. The method uses commercially available reagents and is successful with most natural amino acids. The simplicity of the method may encourage researchers to prepare new oligonucleotide-peptide conjugates with novel proper...
متن کاملInteraction Between Crude Protein Level and Rumen Protected Amino Acids in Starter Diet on Performance of Dairy Calves
BACKGROUND: A limited number of studies have investigated the inclusion of amino acids in calf starter. OBJECTIVES: This study was aimed to evaluate different levels of crude protein in starter and supplement- ing some protected amino acids on efficiency, health status and blood metabolites of dairy calves and to com- pare it with unprotected amino acids. <st...
متن کاملWolff rearrangement of diazo ketones derived from N-p-tolylsulfonyl- protected á- and â-amino acids
Diazo ketones derived from N-p-tolylsulfonyl (tosyl)-protected áand â-amino acids have been synthesized and their diazo decomposition under standard Wolff rearrangement conditions, PhCO2Ag–Et3N–MeOH, has been investigated. It is observed that, under these conditions, several different reaction pathways, including direct carbene N]H insertion, are possible. The reaction is markedly affected by t...
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2018
ISSN: 1551-7012
DOI: 10.24820/ark.5550190.p010.727