Amino Acid Derivatives
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Amino Acid Derivatives
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Author : G. C. Barrett
language : en
Publisher: Oxford University Press on Demand
Release Date : 1999
Amino Acid Derivatives written by G. C. Barrett and has been published by Oxford University Press on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Science categories.
Many successful syntheses of homochiral organic compounds use an amino acid derivative as a starting point. Such syntheses are not confined to peptides as targets; peptide synthesis strategies have been narrowed down to a few well-defined protocols (and these are not covered in this book).Outside the peptide field, many non-routine syntheses have been established that give the intended products in which the structural features of the starting amino acid are barely recognisable. This book is a laboratory guide that covers the early stages of syntheses under these headings, whichinvariably call for modifications to the functional groups of readily-available L-amino acids. It will therefore give invaluable guidance to the preparation of amino acid derivatives to be used not only in these broad area of synthesis but also in amino acid analysis. Synthetic work with aminoacids carried out by new users and by experienced chemists and other scientists, will be supported by the detailed practical protocols and background information provided in this book.
Synthesis Of B Amino Acid Derivatives
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Author : Brad E. Sleebs
language : en
Publisher:
Release Date : 2004
Synthesis Of B Amino Acid Derivatives written by Brad E. Sleebs and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Amino acids categories.
Chapter 4 outlines the utilisation of oxazinanones in a series of alkylations and hydroxylations to produce {460},U+00dd-disubstituted-U+00dd-amino acids. The enolate chemistry performed with the oxazinanones occurred in a diastereoselective fashion. Such is the versatility of the chemistry, both diastereopure N-methyl and N-H {460},U+00dd-disubstituted-U+00dd-amino acids can be obtained. The following chapter details the experimental procedures and data for the synthesis of these important amino acid residues.
The Synthesis Of Certain Amino Acid Derivatives
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Author : Alfred Edward Brown
language : en
Publisher:
Release Date : 1940
The Synthesis Of Certain Amino Acid Derivatives written by Alfred Edward Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with Amino acids categories.
Amino Acid Derivatives As Novel Non Steroidal Anti Inflammatory Drugs
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Author : Usama H. Ramadhan
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2012-04
Amino Acid Derivatives As Novel Non Steroidal Anti Inflammatory Drugs written by Usama H. Ramadhan and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-04 with categories.
The nature of inflammation and relationship with metabolism of unsaturated fatty acid, and the factors effect on it were shown in this book. The non-steroidal anti-inflammatory drugs (NSAIDs) have side effects and non specific even that specific for cyclooxygenase-2 (COX-2) enzyme, amino acids derivatives were synthesised and tested for anti-inflammatory and analgesic activity. The nature of binding of compounds with the active site of enzyme specify the activity of drugs, they appeared highly activity and high-quality for used as novel anti-inflammatory drugs, without side effects. The histidine derivatives show potent activity as a new anti-inflammatory and analgesic analogue, also tryptophan derivatives they more powerful than aspirin and diclofenac, they contain imidazole ring in their structure. The future of anti-inflammatory drugs (NSAIDs) is amino acids derivatives, and possibly works as anti-cancer drugs.
Complexation Of Amino Acid Derivatives Using Macrocyclic Receptors
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Author : David John Smith
language : en
Publisher:
Release Date : 1996
Complexation Of Amino Acid Derivatives Using Macrocyclic Receptors written by David John Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Synthesis And Physical Properties Of Fatty Acid Derivatives Containing Amino Amido Functions And L Amino Acid Residues
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Author : 梁偉賢
language : en
Publisher:
Release Date : 2017-01-27
Synthesis And Physical Properties Of Fatty Acid Derivatives Containing Amino Amido Functions And L Amino Acid Residues written by 梁偉賢 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-27 with categories.
This dissertation, "Synthesis and Physical Properties of Fatty Acid Derivatives Containing Amino, Amido Functions and L-amino Acid Residues" by 梁偉賢, Wai-yin, David, Leung, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3123375 Subjects: Fatty acids - Synthesis Amino acids
Organo Catalytic Strategies Towards Alpha Alpha Disubstituted Amino Acid Derivatives
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Author : Henning Vogt
language : en
Publisher:
Release Date : 2006
Organo Catalytic Strategies Towards Alpha Alpha Disubstituted Amino Acid Derivatives written by Henning Vogt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
The class of non-proteinogenic a,a u2011disubstituted amino acids and their derivatives is of high interest to biochemical and pharmacological research. This predicates on their ability to alter certain chemical and physicochemical properties of peptides and related structures. Moreover, the close structural relatedness to biologically relevant endogenous amino acid derivatives qualifies them in many cases to act as enzyme inhibitors or receptor antagonists.In the present study, the development of new strategies towards the synthesis of N u2011protected a,a u2011disubstituted amino aldehydes and their derivatives is demonstrated. Starting from ketones, a,a u2011disubstituted aldehydes were prepared in two or three steps. These aldehydes were subjected to stereoselective organo-catalysed a u2011amination reactions. The transfer of a procedure known for the a u2011amination of a u2011unbranched aldehydes with azodicarboxylates to racemic a u2011branched aldehydes delivered N u2011protected aminoaldehydes in up to 87 % yield and 86 % ee. The conversion of the amination products to the corresponding N u2011protected 4,4 u2011disubstituted oxazolidinones was accomplished, after in situ-reduction, in two additional steps.In addition to this method, a new strategy was devised using sulfonyl azides as aminating agent to deliver a u2011sulfamidated a,a u2011disubstituted aldehydes in up to 55 % yield and 86 % ee. A mechanism was proposed, which differs fundamentally from the mechanistic model usually ascribed to enamine catalysis. The transformation of the sulfamidation product into the free amino acid was accomplished in two steps.Since the two concepts follow different mechanistic routes, different enantiomers of N u2011protected, a,a u2011disubstituted aminoaldehydes are accessible by one catalyst. All reactions involved in the latter approach are free of transition metals. Therefore, the presented strategy could prove to be especially useful for medicinal chemistry.
Preparation Of Alpha Substituted Amino Acid Derivatives By Dynamic Kinetic Resolution
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Author : N. R. Treweeke
language : en
Publisher:
Release Date : 2001
Preparation Of Alpha Substituted Amino Acid Derivatives By Dynamic Kinetic Resolution written by N. R. Treweeke and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
The Asymmetric Synthesis Of Novel Amino Acid Derivatives
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Author : Stephen Brian McNabb
language : en
Publisher:
Release Date : 2002
The Asymmetric Synthesis Of Novel Amino Acid Derivatives written by Stephen Brian McNabb and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Amino acids categories.
Enzymic And Non Enzymic Syntheses Of Amino Acid Derivatives
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Author : Siu Choon Ng
language : en
Publisher:
Release Date : 1987
Enzymic And Non Enzymic Syntheses Of Amino Acid Derivatives written by Siu Choon Ng and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with categories.